Massive respect for posting this ! Me and my pal are outside a job (Render) and both agree it happens to all of us at some point! People just want to show how great they are and how they are “Smashing it” You know what you gotta do brother so just don’t batter yourself!👊👊
The man who hasn't made a mistake ain't been born yet, at least you show not only when jobs go smoothly but when jobs don't go as planned that takes honesty and should be admired by the fact you showing it, unlike others who only show the good workmanship.
Drag out the water hose and soak it right! We don’t get “good” plastering weather here very often. We soak the wall down with the hose for a few minutes before mixing and another spray before troweling on. That brush and bucket just isn’t enough water. Nothing wrong with your mix or your lime or your whatever else. The sun drives the moisture back into your base coats. If the weather is real harsh you’ll spray again before ruling off and finishing. Remember people do this in Las Vegas- its all about giving it the water it needs.
the problem is the brush and the bucket have been good enough in the past, remember he's worked on those 'bricks' before so he's tried and tested on that platform he's working on, and as you say, the mix is fine. so the issue, logically, is something else if he's used the same technique and mix. tbf you would have thought he has rendered in the sun/wind before so again, its pointing to some other 'blame' point.
@@feegs123 True. We always use a cement mixer tbh. I was always told that a paddle mixer puts too much air in the mix, makes it go off quicker and weakens it.
My father used to tell me"the man that never made a mistake, never worked" You got that beautiful little girl at home waiting.In my mind, no matter how bad you feel a day was, you are still a very lucky guy. Thanks for all the effort you put into your videos.
One of the better videos you've done purely because it shows that things can go wrong buddy. Big kudos for uploading it for all to see. We are all human. Love the vids, keep at it!!!
Massive respect for uploading this vid. I love your honesty. Jobs do go wrong and it’s finding the solution rather than just focusing on what’s gone wrong...and onto the next job. 👍🏻
Integrity. And without sounding condescending buddy, you got it, in spades. It's happened to myself also many times. And everything you've mentioned, sun; absorption wind etc appeared to be contributing factors. And the fact that youve redone the job, shows character. I'm 27 years time in now, and still being caught out. I assume that everything will catch me out, so I chemical key everything, everytime. Good on ya bro. God bless.
Hi. Be very very wary of using lime and waterproofer in a mix. Lime itself is a plasticiser so it is very easy to add too much air in a mix when using the two. Cement is a binder! Not an adhesive. It works by surface area. So the more air in the mix: the more surface area the cement must bind: the weaker the mortar. The more chance of fail. In my the same way you should be wary of using lime , waterproofed and a cement with a added plasticiser like master Crete etc it equals more air. If you are in an area where the sand is fine this can be an even greater problem as the finer the sand the more surface area the cement must bind.. when you add the environmental conditions it can cause serious problems. Cement reacts with water to make rock. If you lose water from heat or wind the cement doesn’t have enough water to set. Always mist coat your render several times a day for a couple of days after it has been finished..be careful of having scratch coats that have too much suction but in winter you may well want a lot of suction hence mist coating with water after finishing. Or in the summer you may want to use a lot of waterproofer to slow suction and slow the set. Suction on a high suction background can also be reduced by painting with a sealer like SBR solution. We all been there mate.it’s a harsh harsh harsh trade
Impressed you posted this, and it helps others who have made mistakes even after years of practice, your a great plasterer and I look forward to you smashing it inthe next video 👍
if he is a GREAT plaster he would not get into this mess, wot shit does, not know what he is doing, another so-called plasterer cant do much more than skimming.
Love this guys videos ,I'm doing a nvq level 2 in plastering at the moment , and wow this guy makes this job looks EASY . When in reality it's very very difficult and requires a tremendous amount of skill to make it look like this guys work
I appreciate your skills and confidence- no one knows 100% what they are doing. Stay strong, you are amazing. I am a woman doing maintenance work and its natural to me to see that so many things are not set in stone- everyone has their own advice and tactic and laws but none are perfection. If we all had the magic formula we would all be rich. Much love
Mad respect to show failure, I’ve been doing this for 39 years , it happens to best of us , brush ur self off , and we learn from our mistakes, take care of yourself and family bro , god bless sir
Fair play to you showing that even trades can have things go wrong not just us diy. I was thinking if rendering my breeze block extension as plastered couple of rooms ok but this had made me think again
@@PlasteringForBeginners nice one mate. Ive been wondering if to use k rend or sand and cement. What worries me with k rend is how u get stains on it after a couple of years. Also if i send u an email have u got an adress i can send you a some plaster extra time sachets i think got about 4-5 left as was using the cream of tartar. Said before your vids helped me plaster my kitchen and utility
A far bigger man for being honest about the mistake. All pros make mistakes, whatever game you're in. We all learn faster from mistakes so I have huge respect to you for being generous enough to show us the pitfalls. I've learned far more from you than people who hide the difficult side of doing getting a job done. Top channel. You have a new subscriber.
Haven't even watched the video yet. But I always appreciate the honesty and bravery of a professional that admits their mistakes. It's more a measure of someone, what they do to fix the problem.
Oh mate I feel your pain. As a welder /fabricator I've had jobs where it starts to go wrong and you end up chasing your tail getting nowhere fast to try and get it back on track. The thought of going back is worse than the actual task but you get through it and feel relieved that it's over and its all a learning experience as I've had with plastering. An old boy once said to me 'it's only a problem if you can't fix it'. Enjoy the time with your little girl as time is going to fly by now.
Drench it when the it's in direct sunlight. Even tho it might not be warm the wall will absorb the heat and be warmer than you think. If you soak it an the water is pulling in generally you render is gonna pull in. Get the hose out and absolutely soak it and you should be good! That's what I've learned over the past couple years in the trade. Your whole lot more experienced than me, and seeing this just shows even highly skilled tradesmen make mistakes! Always good to share a mistake it's the best way to learn some times!
This video to me shows your true strength & what you use to power you through the hard times. Your daughter. I do the same bud. Every spread has faced the dreaded render fail I have had this happen to me twice over the years & like you I still do not know what exactly caused it I put it down to the sand as I changed suppliers but again could be other contributing factors. Fairplay for demonstrating to your followers that you put your work right when things don't go to plan & you own your shit. Absolute legend ❤️
Spot on Stu. Think a water hose is a must though. We soak our scratch coat with a hose twice before we top coat it, especially in conditions like what Blaine had to contend with. Water proofer or SBR in the scratch can also be good for controlling suction.
fair play for showing your mistakes, Ive been a spread 27 yrs over in Ireland 🇮🇪, A good tip is try finish over your scratch coat the nx day and it should only need a light brush of water,I know its hard juggling different jobs but if you have to leave your scratch coat for a while take the end off your hose and let it run down from the top of the wall to the bottom and I know it sounds funny but if you put your ear to the wall you will actually hear the wall sucking in the water ,when its wet enough the water will start to run down the wall,then start mixing your muck, keep up the good work 👍
I feel for you partner. All good tradesmen learn from their problems and mistakes, and it takes a real man to admit to them, face up to them and put them right. As an old builder I always hose my scratch coat down, starting from the top and working down, watching carefully how it soaks up. Better to over-wet it and let it sit before rendering than experience what you have here. Respect to you my friend for posting this video.
@@PlasteringForBeginners no problem mate I just don’t appreciate people disliking someone who is trying to provide content as well as providing for their family.
@@THE-AIDEN-PROJECT I’m pretty sure they are people that have never worked a trade in their life and don’t understand how a mistake can set you back days,weeks or months
I been there a few times mate. In them conditions I'd be there about 5.30am ish. Put some SBR in the scratch coat. Wet the wall down for a couple of minutes with a hose. Cover it with tarp after. Keep mist spraying for a couple of days. Hope this helps.
As others have said, big respect mate. We’ve all been there. What makes rendering such an art form is that it always reacts slightly differently. I’ve done a lot of regency buildings, hacking off and re-rendering, forming angles by hand without beads. It can be a joy, but it’s also demoralising at times. As a few others have commented, be careful mixing chemicals with lime. I tend to go chemical free with the top coat and drop to a 6-1-1 mix.
We learn every day.... years on years of experience and we all make mistakes.... always have a pressure sprayer to hand to soak the walls.... and labourer may have helped getting the gear on quicker so your not stop starting all the time... but respect to you for showing ...
Thanks for sharing and I can see others have told you their reasons for this fail. Hope you dont mind if I share my opinions. My dad was plasterer 1950s until early 2000s over 55 years. He stopped aged 75 and I learnt all from him. I was plasterer full time for 15 years and now am a surveyor but still work at weekends cause I want to keep fit. Another 20 years part time. So between me and my late father I reckon 70 + years experience. I was not as good at render as him but reckon I can see where you may have gone wrong. I've been there and know the pain These are my comments: Firstly rendering and plastering are similar skills but I would say there is more to external rendering with sand n cement than internal plastering. More things to go wrong. Strength of mix is very important. In exposed areas traditionally either a dry dash or slurry mix should be used. The exposed aggregate/ stone will withstand damage from weather. Appreciate part of the wall will be inside and a flat render was required but the strength of the mix is important. ALL cement based materials mortars, renders, floor screeds concrete etc require water to cure and reach their designed strength. Floor screed, for example, is laid almost dry but must be kept wet for a time period after initial set to ensure it achieves full strength. Render, if it dries too quickly will not cure and the result will be weak and crumbly. Your video appears to show the top coat drying very quickly. This is due to the water from the top coat being drawn into the scratch coat and background as well as the sum and wind it was all against you on that day. The suction of the background needs to be controlled to allow the render coat to set in an optimal length of time to ensure it achieves required strength and is workable for a period of time to allow you to achieve the desired finish. Depending upon the density of the blocks the scratch coat's suction may be controlled by adding a water proofing admixture or apply water before the top coat. It is a fine balance and needs to be judged on a case by case situation. Hosing a wall down, saturating it if it is dense blockwork with a waterproof scratch coat may mean the top coat is too slow and you cannot finish it. Or it starts sliding down wall, we've all been there on a cold wet day. I would suggest testing a wall by pouring a measured amount of moisture from top of the wall. Use the cut off tin can you use to gauge your admixture. If water is absorbed before it reaches base of wall, hose or splash more water on scratch coat. If it runs from top to bottom and is not absorbed you will be waiting for the render to set. The amount of suction needs to be just right. When top part of your wall started to dry you should have scraped it off and started again and prepared background with more water. Mixing? Dry mix materials and add minimal amounts of water. It should be workable but not creamy and fluffy. Sand and cement should be turned with a shovel or a cement mixer. Do not whisk as this will over mix and prevent the chemical bonds between the cement and water forming within the render mix. Without a chemical bonding process the render will not achieve full strength. Lime based mortars should have min water as too much prevents the cementatious bonds from forming and it will release its water content to a thirsty/dry background more easily Lime or chemical admixture. You dont need both. I'm sure one will react with other and prevent the cementatious bonds from forming. Check on the chemical mixture instructions if it can be used with a lime based render. The sand should be courser than building sand, washed to remove fine silt particles. We often added a course grit to strengthen the mix. Use a preparatory bagged render, such as K rend. This has been produced in factory to a quality assured standard. It gets rid of the lime, cement, admixture, too much water variables and you just need to prep background. Cost more but you only do it once. That's why we use hardwall and bonding internally rather than sand n cement background. I see this on most sites and it takes all guess work out. Builders prefer these materials as they get fewer call backs . Render onto plastic cavity closer. Not sure either about this but as no suction I guess it set in it's own good time. Personally I would have applied a scratch coat over to create a uniform suction with rest of the wall or a splatter coat of sharp sand n cement day or so beforehand or painted cement/pva slurry over. Risk is different shrinking between the masonry and plastic. Metal lathe fixed over mechanical fixed (screwed or nailed) into wall would help. Hope some of my comments above make sense and from what I could see there was nothing wrong with your technique just needing more experience. The power float? WTF. My dad would have loved that but think it only works if all other factors are ok, suction and mix need to be good before you can finish it.
So are you supposed to keep the finish coat of color coat stucco wet for days following application? I'm wondering because it seems like a color coat I did is dry and crumbly. I've never seen stucco guys wet down the walls after finish coat though. I know they do it after the scratch and brown, for days.
we go again Blaine, I've learnt a lot from some of your videos and always looking to improve as a plasterer. your a legend mate and I hope you come back stronger from this minor setback.
Great honest video. Whilst a hose pipe would be good, a labourer is what you need as you get older. With that baby keeping you wake at night you won't have the energy to mix and spread! Working alone on wet trades is hard graft so fair play to you. Hope you had a few quid left at the end of the job and hope the parenting is going well 👍
Fair play to uploading the video, we've all had a mare of a job at some point. It's not a fail if you sort it out, its a lesson learned. Like others have said, nothing wrong with your mix, just get the hose out when you go back :)
I must admit I was shaking in my boots before uploading this Video but I had to share it. It's a lesson learnt and the comments have helped massively. Cheers!
Just one of those days, seen many render in bad conditions & chasing the render too wet & sagging, newspapers, heaters anything to try & get the water out, live & learn, but like you said it looked a good day for it !! Dave G
Thanks for posting this. This makes you stand out from others - being absolutely honest and genuine. One question. I am not a plasterer, but been watching your vids to try and diy bits at my house. If you had PVA-ed the scratch coat, sort of seal it, would it have made a difference with limiting the suction. Noticed the render over the Cavity closure part was still workable.
Can so relate to this video. I’m at 1600m above sea level - the air is thin a evaporation is fast. Plus we have +_300 days of sunshine/year. In the middle of winter despite the cold the air is even drier. So it’s really tricky. I don’t see many builders doing 2 coats… they do one layer and work in pairs - one slapping it on and the other not far behind ruling it, and if it’s a big wall a third lad floating it. Labour is much cheaper here so that is an option not available in England I’m guessing. Great videos.
Fair play to you for sharing a job that goes wrong. These videos are probably more helpful to people. Unfortunately things like this happen we just don't like to admit it. Big respect 👍🏽
That's exactly what i thought when i saw him using that brush instead of a water hose. That wall was dry and needed hydration over and over a couple of times at least.
As a bricklayer and pointer for the past 40+yrs I can relate to when things go wrong.I can almost guarantee when i'm doing a chimney or a patio i'll get half way through and it will P down before I can cover it up - if covering the work in itself is possible.Same as not being able to use cement after a certain time of day in the winter as it freezes and nothing goes dry especially work on or near the ground where it's damp.Then there's the opposite in the summer where you have to either wet everything down or keep dropping back as everything's going dry too fast or one part is drying different to another and some bricks absorb water a lot faster than other which can be a double edged sword.I do some rendering just small walls and plinths etc...but weather can be a nightmare at times.
Spotted Quinn cement. An absolute no no for render, too rough in the refinement, its alright for brick laying or screeding. away to high GGBC(slag ash) content cement. Yes need on thePortland cement but its blue circle /lafarge. Lime is ok but will cause a slight issue.
Been wanting to do this in my garden to tart up and old raised flowerbed, I've sat and watched the full rendering collection today and you've made tips and videos that easy to follow I'm fully prepared to have a go myself! Thanks so much and keep up the good videos 👍
Love this video. Even as professional contractors things go wrong and every day is a learning day.personaly I have learnt loads from these 2 vids . Well done for been so honest and up front.
Great too see a video where it goes wrong. Respect to you for doing this. Every tradesmen knows the odd job doesn't go to plan.... but it's how you get over it that counts. Respect mate have a good weekend
@@PlasteringForBeginners really looking forward to it. Very informative videos you've helped me out bundles. Will be great to see what you do next. Enjoy your family time
Hi Blaine, great work love your teaching . Keep up the good work. I am really looking forward to the next teaching on this and how to fix this kind of problem. Cheers
Fair play for showing this mate hydration is key in this situation , putting lime in your mix will make it more workable but will pull it in faster , your content that you show is one of the best keep doing what your doing mate love watching your videos 👌🏻
Living in Australia we get plenty of hot days so yes good pre soak for sure,also any cement based product will lose a lot of strength when dry too fast like that.Thanks for sharing mate
Hi lots of great comments posted here, massive respect to you for posting this video but in my opinion the job is just another day in the life of a good plaster doing a tough difficult job it happens to us all I guess I'm what some people would call an old boy in the plastering game started at 16 years and at 65 years still plastering so to the point my experience on external rendering is to use a good brand waterproofer plasticizer in the base coat and soak the wall to saturation point then use a plain old sand and cement mix with waterproofer plasticizer added and that's all I've ever used. keep up the great work you do mate. 👊👊 ( totally agree with you on the marshalltown trowel)
Confucius say. Show me a Man Who Never made a mistake, Never learnt anything ! Your Greatest Strength is not in Never Failing, but in Rising Up Every Time You Fall, Your Daughter in time will look back on your vids with Pride, Chin Up Push On. BIG Thanks for your hard work making vids, every day a school day. P.S More Beer Reviews
Good you show what went wrong, I would have drenched the wall with a hose and sprayed inbetween as well. You learn from mistakes... I've made a lot worse!
Joe Bloggs makes some very good points. Add all that to a lot of wind and a dry background and it all adds up to trouble. The wind can be hellish. I do know people that won’t use cement with added plasticisers, but good rendering is so much about the environmental conditions on the day let alone all the grey areas of this additive and that additive blah blah blah. I’ve love rendering but I also hate it sometimes. Put it behind you. We’ve all been there and feel your pain. Be positive, healthy remember your family love and support you. It’s REALLY all that matters. Rio
Massive respect Blain. Every man has made mistakes and that is the only way to learn..I've made heaps and continue to do so. It's our humility that allows us to accept responsibility, learn and move on...that's life lessons and not just rendering, building etc. I'm a 54 yr old builder and first started rendering since I was 15 and still learning. The comment with adding plasticer and lime is spot on and where possible I always use blue circle paper bag. Waterproofer in scratch 4:1 and just lime in top 5:1:0.75. Also lay up and plumb screed banks first when doing big areas so I have something to rule off..working quickly. Comment on hiding down too much quite right as have been waiting too many times for render to go off under torchlight when I should/wanted to have been back home playing with my baby girl. Give more water to the top. My mixes are wetter so it pools slightly when it comes off the trowell onto hawk. 3rd sharp sand with builders/ pit sand too gives a better finnish. Peace
We've all been there mate. Blockwork and sun caught you out. Things that can be done though. If it goes off like that, scrap it back to the scratch (save wasting money on more gear you dont need) weak pva/water mix over the scratch. Then render again with a 4:1 mix with an sbr additive. You'll have more time to rule off and run the devil float over it. Itll sponge up like normal ! Another tip as well for on the walls that suck in normal, use a wooden darby ! Ally drags the moisture out the render and it pulls in patches, wood doesnt ! I've still got my dad's old Darby 😂 things 60 years old, but I love it 🤣😂
Plastering for beginners You rendered a wall which went wrong. In the scratch coat the waterproof you used was crap go to Wicked and get there external waterproof. When you go to top coat when direct Sun light you need to hose your walls down . By the time you wet with a brush and apply render the wall is dry. The waterproof you used in scratch coat was integral which is crap for external work Also I use lime in top coat.6 sand 1 cement 1 lime. If pulls in can bring it back with water. Nick willis 20 tears a plasterer. Like watching your videos you explain things very well
Think it’s a great video Blaine. As we all know everyone learns by mistakes so it’s good you put the video out there and something we can all debate and for people like me just getting back into it have things to think about
That scratch coat needed soaking with a hose, when you had the top on and it had dried like that you should have scrape it off saturated the wall and started afresh
I'm in the same boat at the moment and a newbie. Have you posted the video of how you went about fixing it? I know you mentioned render grab but looking forward to that video really enjoying your previous videos.
Happens to the best of us. Ive been rendering for 20yrs in Ont Canada. Ive had this happen too and it can make you crazy. Your mix is good. Same mix I use most of the time but I always get the hose out and soak the shit out of the wall 30 min before and again while my mix is setting. Not sure if you do but you should always let your mix set for 15 min then mix it again so it doesnt go off on you so quickly. Gives you more time and workability
Keep the chin up fella. We all have a shit one from time to time. Tomorrow is another day. Just have to take the hit, put it behind you and move on. Onwards and upwards buddy. All the best mate.
Hi mate Can I just check can you render over masonry paint? Or should I put some keys in it with a grinder and maybe dilute some pva in water to coat the wall first ? Ta
I always plan spreading render when the walls are in the shade during warmer months, just a little though for you in the future and hose the wall down and watch the suction of the water if it pulls in fast use diluted pva mix
I live in Thailand and the locals are highly skilled at rendering, pretty poor at everything else though. I have done a lot of rendering here and its a nightmare, you have to get the backing on and the finish in 20 minutes. the floating is always done with a plastic float and a sponge attached and you just go round and round, dunking in the bucket of water and floating, it gets a great finish but as always the index finger press into the top coat to guage the exact moment to start floating. a lot of the render here also is premixed, it has special bonding and plasticisers added then you simply mix it with water. nice video, we are all human and we learn from these experiences
I was in Thailand for 3 months and watched the renderers! A real skill working in that heat and I agree that some rendering is amazing (not all of it though ha)! Thanks for watching mate and all the best 👍
Thanks so much for that. Not done much rendering but was putting my top coat on today, tonight actually as tried this morning but too hot, and about half of it just fell off? Was all sitting perfect all flush the lot. Any ideas what happened. I am a plasterer have been thirty years. Just want to be able to do an odd bit of rendering. Thanks for your time.
Hi Blaine, I’ve had the same problem mate.. I always double up on the water proofer in my scratch coat.. Or second guess it could be your knocking it up with a spinner which can set the mix too fast.. All been there buddy..
I always use a watered down P.V.A applied with a fluffy roller on the scratch coat , helps with adhesion and slows the suction down on the scratch coat , it reactavates when top coat is applied for a good bond of the finish coat , nothing worse than a blown render job , we all have had one . .
If you apply diluted PVA it will slow down the suction of the render in hot temperatures and also stop cracking which happens when the material goes off to quickly.
The wall needs to be cold as well as damp...lots of water will give you a coat of iron!! The mix sounds ok but i doubled up on Rendabond waterproofer in the scratch coat...love lime in the mix, brilliant stuff. Well done for posting this.
Mate I've been plastering for 20 years this has happened to me before but no worries just do it again. You needed to soak the wall maybe the day before and soak it before you mix up that's all that went wrong it's just sucked in to fast. Your a top plasterer love your videos 👍 Rev from cardiff plasterers!!!! Plus you need a hosepipe!!!
Happens to us all pal, respect for posting this! All a learning curve no matter how long we been at it always still learning in this game. I've had this before, there's nowt worse! I do a m2 as a test to see how it reacts and go from there with it but that was from learning the hard way the same lol topman
Hi blaine you should ave soaked wall cos dont forget that wall was block work behind that scratch coat u did so the brush u was using to wet wall wasnt enough soak the wall then let water soak in till the water stops running down wall then applie render ive done the same in the past mate no worrys
Massive respect for posting this ! Me and my pal are outside a job (Render) and both agree it happens to all of us at some point! People just want to show how great they are and how they are “Smashing it” You know what you gotta do brother so just don’t batter yourself!👊👊
Your not alone with this problem, we've all been there. Respect for showing a problem 👏
The man who hasn't made a mistake ain't been born yet, at least you show not only when jobs go smoothly but when jobs don't go as planned that takes honesty and should be admired by the fact you showing it, unlike others who only show the good workmanship.
Thank you mate. I really appreciate that
Jesus Christ is perfect
@@davidfeaver6820 But Jesus is not man, nor can be compared with anyone..
Drag out the water hose and soak it right! We don’t get “good” plastering weather here very often. We soak the wall down with the hose for a few minutes before mixing and another spray before troweling on. That brush and bucket just isn’t enough water. Nothing wrong with your mix or your lime or your whatever else. The sun drives the moisture back into your base coats. If the weather is real harsh you’ll spray again before ruling off and finishing. Remember people do this in Las Vegas- its all about giving it the water it needs.
Couldn't have put it better. Water is your best friend in the summer, a hose is a must.
And a proper cement mixer
the problem is the brush and the bucket have been good enough in the past, remember he's worked on those 'bricks' before so he's tried and tested on that platform he's working on, and as you say, the mix is fine. so the issue, logically, is something else if he's used the same technique and mix. tbf you would have thought he has rendered in the sun/wind before so again, its pointing to some other 'blame' point.
Cheers mate! I've definately taken it in consideration - I was silly thinking that weather in March wouldn't need it ha! I've learnt my lesson 👍
@@feegs123
True. We always use a cement mixer tbh. I was always told that a paddle mixer puts too much air in the mix, makes it go off quicker and weakens it.
My father used to tell me"the man that never made a mistake, never worked" You got that beautiful little girl at home waiting.In my mind, no matter how bad you feel a day was, you are still a very lucky guy. Thanks for all the effort you put into your videos.
One of the better videos you've done purely because it shows that things can go wrong buddy. Big kudos for uploading it for all to see. We are all human. Love the vids, keep at it!!!
Thank you so much. I really appreciate that my friend!!
Massive respect for uploading this vid. I love your honesty. Jobs do go wrong and it’s finding the solution rather than just focusing on what’s gone wrong...and onto the next job. 👍🏻
Cheers mate! I really appreciate that 👍
Integrity. And without sounding condescending buddy, you got it, in spades. It's happened to myself also many times. And everything you've mentioned, sun; absorption wind etc appeared to be contributing factors. And the fact that youve redone the job, shows character. I'm 27 years time in now, and still being caught out. I assume that everything will catch me out, so I chemical key everything, everytime. Good on ya bro. God bless.
Hi. Be very very wary of using lime and waterproofer in a mix. Lime itself is a plasticiser so it is very easy to add too much air in a mix when using the two. Cement is a binder! Not an adhesive. It works by surface area. So the more air in the mix: the more surface area the cement must bind: the weaker the mortar. The more chance of fail. In my
the same way you should be wary of using lime , waterproofed and a cement with a added plasticiser like master Crete etc it equals more air. If you are in an area where the sand is fine this can be an even greater problem as the finer the sand the more surface area the cement must bind.. when you add the environmental conditions it can cause serious problems. Cement reacts with water to make rock. If you lose water from heat or wind the cement doesn’t have enough water to set. Always mist coat your render several times a day for a couple of days after it has been finished..be careful of having scratch coats that have too much suction but in winter you may well want a lot of suction hence mist coating with water after finishing. Or in the summer you may want to use a lot of waterproofer to slow suction and slow the set.
Suction on a high suction background can also be reduced by painting with a sealer like SBR solution.
We all been there mate.it’s a harsh harsh harsh trade
Well said 👍
Impressed you posted this, and it helps others who have made mistakes even after years of practice, your a great plasterer and I look forward to you smashing it inthe next video 👍
Thank you mate. I really appreciate that...thank you for watching!
if he is a GREAT plaster he would not get into this mess, wot shit does, not know what he is doing, another so-called plasterer cant do much more than skimming.
Hi David I hope the comment didn’t offend you, It was my opinion, Maybe try to keep comments constructive or supportive. ;)
@@davidcowell7402
You ever picked a trowel up David?
Love this guys videos ,I'm doing a nvq level 2 in plastering at the moment , and wow this guy makes this job looks EASY . When in reality it's very very difficult and requires a tremendous amount of skill to make it look like this guys work
Chin up bud! I've messed up plenty of jobs in the past an no doubt will in the future! Always learning every day is a school day 👍
Cheers pal! We're all learning. Thank you for the comment - I really appreciate it 💪
I appreciate your skills and confidence- no one knows 100% what they are doing. Stay strong, you are amazing. I am a woman doing maintenance work and its natural to me to see that so many things are not set in stone- everyone has their own advice and tactic and laws but none are perfection. If we all had the magic formula we would all be rich. Much love
Well done mate for being so honest it happens to us all but we learn from our mistakes best luck for future it's a hard game to be in
Mad respect to show failure, I’ve been doing this for 39 years , it happens to best of us , brush ur self off , and we learn from our mistakes, take care of yourself and family bro , god bless sir
Fair play to you showing that even trades can have things go wrong not just us diy. I was thinking if rendering my breeze block extension as plastered couple of rooms ok but this had made me think again
Cheers pal and it's tough rendering Breeze Blocks but it's possible. This video should get:
th-cam.com/video/c9D2zy31Cq0/w-d-xo.html
@@PlasteringForBeginners nice one mate. Ive been wondering if to use k rend or sand and cement. What worries me with k rend is how u get stains on it after a couple of years. Also if i send u an email have u got an adress i can send you a some plaster extra time sachets i think got about 4-5 left as was using the cream of tartar. Said before your vids helped me plaster my kitchen and utility
A far bigger man for being honest about the mistake. All pros make mistakes, whatever game you're in. We all learn faster from mistakes so I have huge respect to you for being generous enough to show us the pitfalls. I've learned far more from you than people who hide the difficult side of doing getting a job done. Top channel. You have a new subscriber.
Haven't even watched the video yet. But I always appreciate the honesty and bravery of a professional that admits their mistakes. It's more a measure of someone, what they do to fix the problem.
Cheers pal. I really appreciate that and I hope you enjoyed the video! Thanks again
Oh mate I feel your pain. As a welder /fabricator I've had jobs where it starts to go wrong and you end up chasing your tail getting nowhere fast to try and get it back on track. The thought of going back is worse than the actual task but you get through it and feel relieved that it's over and its all a learning experience as I've had with plastering. An old boy once said to me 'it's only a problem if you can't fix it'. Enjoy the time with your little girl as time is going to fly by now.
Thank you pal. It's a killer when it happens but we have to get over it! Like you said, as long as we learn ay. Great comment - thanks mate!
@@PlasteringForBeginners massive respect for putting it up as well bud and hope you and your family are well
So good to hear such humility.. power to you. Says so much more about you than a just the wins. Easy to listen to and watch. Good style.
This man has balls of steel for posting ,big respect for you man.
Drench it when the it's in direct sunlight. Even tho it might not be warm the wall will absorb the heat and be warmer than you think. If you soak it an the water is pulling in generally you render is gonna pull in. Get the hose out and absolutely soak it and you should be good!
That's what I've learned over the past couple years in the trade. Your whole lot more experienced than me, and seeing this just shows even highly skilled tradesmen make mistakes! Always good to share a mistake it's the best way to learn some times!
Thanks mate. I really appreciate that... we're all letting! Thanks for watching and I appreciate the comment. Cheers pal 👍
This video to me shows your true strength & what you use to power you through the hard times. Your daughter. I do the same bud. Every spread has faced the dreaded render fail I have had this happen to me twice over the years & like you I still do not know what exactly caused it I put it down to the sand as I changed suppliers but again could be other contributing factors. Fairplay for demonstrating to your followers that you put your work right when things don't go to plan & you own your shit. Absolute legend ❤️
Spot on Stu. Think a water hose is a must though. We soak our scratch coat with a hose twice before we top coat it, especially in conditions like what Blaine had to contend with. Water proofer or SBR in the scratch can also be good for controlling suction.
Appreciate you showing the good and bad it keeps your channel real. Like life is.
Thanks pal! I appreciate the feedback!
Very honest and brave. Thanks for showing what clearly was a tough day, we’ve all had them.
fair play for showing your mistakes, Ive been a spread 27 yrs over in Ireland 🇮🇪, A good tip is try finish over your scratch coat the nx day and it should only need a light brush of water,I know its hard juggling different jobs but if you have to leave your scratch coat for a while take the end off your hose and let it run down from the top of the wall to the bottom and I know it sounds funny but if you put your ear to the wall you will actually hear the wall sucking in the water ,when its wet enough the water will start to run down the wall,then start mixing your muck, keep up the good work 👍
We have all been there. Great of you to post this, shows your human
ive learned a ton from making mistakes
failure evnetually turns into the most fantastic payment and profits.
I feel for you partner. All good tradesmen learn from their problems and mistakes, and it takes a real man to admit to them, face up to them and put them right.
As an old builder I always hose my scratch coat down, starting from the top and working down, watching carefully how it soaks up. Better to over-wet it and let it sit before rendering than experience what you have here. Respect to you my friend for posting this video.
Who would dislike a vlog on rendering. Pathetic . I love this content
Cheers pal - I really appreciate you watching it! Thank you
@@PlasteringForBeginners no problem mate I just don’t appreciate people disliking someone who is trying to provide content as well as providing for their family.
With you on that one James! I've got a troll who tries to hit the thumbs down as soon as I upload a video 😂
@@THE-AIDEN-PROJECT I’m pretty sure they are people that have never worked a trade in their life and don’t understand how a mistake can set you back days,weeks or months
I been there a few times mate.
In them conditions I'd be there about 5.30am ish.
Put some SBR in the scratch coat.
Wet the wall down for a couple of minutes with a hose.
Cover it with tarp after.
Keep mist spraying for a couple of days.
Hope this helps.
Well done mate.. never be to proud to admit we all get it wrong sometimes.. your work proves you know what your doing..your a top edger and spread..
As others have said, big respect mate. We’ve all been there. What makes rendering such an art form is that it always reacts slightly differently. I’ve done a lot of regency buildings, hacking off and re-rendering, forming angles by hand without beads. It can be a joy, but it’s also demoralising at times.
As a few others have commented, be careful mixing chemicals with lime. I tend to go chemical free with the top coat and drop to a 6-1-1 mix.
We learn every day.... years on years of experience and we all make mistakes.... always have a pressure sprayer to hand to soak the walls.... and labourer may have helped getting the gear on quicker so your not stop starting all the time... but respect to you for showing ...
Thanks for sharing and I can see others have told you their reasons for this fail. Hope you dont mind if I share my opinions.
My dad was plasterer 1950s until early 2000s over 55 years. He stopped aged 75 and I learnt all from him. I was plasterer full time for 15 years and now am a surveyor but still work at weekends cause I want to keep fit. Another 20 years part time. So between me and my late father I reckon 70 + years experience. I was not as good at render as him but reckon I can see where you may have gone wrong. I've been there and know the pain These are my comments:
Firstly rendering and plastering are similar skills but I would say there is more to external rendering with sand n cement than internal plastering. More things to go wrong.
Strength of mix is very important. In exposed areas traditionally either a dry dash or slurry mix should be used. The exposed aggregate/ stone will withstand damage from weather. Appreciate part of the wall will be inside and a flat render was required but the strength of the mix is important.
ALL cement based materials mortars, renders, floor screeds concrete etc require water to cure and reach their designed strength. Floor screed, for example, is laid almost dry but must be kept wet for a time period after initial set to ensure it achieves full strength. Render, if it dries too quickly will not cure and the result will be weak and crumbly. Your video appears to show the top coat drying very quickly. This is due to the water from the top coat being drawn into the scratch coat and background as well as the sum and wind it was all against you on that day.
The suction of the background needs to be controlled to allow the render coat to set in an optimal length of time to ensure it achieves required strength and is workable for a period of time to allow you to achieve the desired finish. Depending upon the density of the blocks the scratch coat's suction may be controlled by adding a water proofing admixture or apply water before the top coat. It is a fine balance and needs to be judged on a case by case situation. Hosing a wall down, saturating it if it is dense blockwork with a waterproof scratch coat may mean the top coat is too slow and you cannot finish it. Or it starts sliding down wall, we've all been there on a cold wet day. I would suggest testing a wall by pouring a measured amount of moisture from top of the wall. Use the cut off tin can you use to gauge your admixture. If water is absorbed before it reaches base of wall, hose or splash more water on scratch coat. If it runs from top to bottom and is not absorbed you will be waiting for the render to set. The amount of suction needs to be just right. When top part of your wall started to dry you should have scraped it off and started again and prepared background with more water.
Mixing? Dry mix materials and add minimal amounts of water. It should be workable but not creamy and fluffy. Sand and cement should be turned with a shovel or a cement mixer. Do not whisk as this will over mix and prevent the chemical bonds between the cement and water forming within the render mix. Without a chemical bonding process the render will not achieve full strength. Lime based mortars should have min water as too much prevents the cementatious bonds from forming and it will release its water content to a thirsty/dry background more easily
Lime or chemical admixture. You dont need both. I'm sure one will react with other and prevent the cementatious bonds from forming. Check on the chemical mixture instructions if it can be used with a lime based render.
The sand should be courser than building sand, washed to remove fine silt particles. We often added a course grit to strengthen the mix.
Use a preparatory bagged render, such as K rend. This has been produced in factory to a quality assured standard. It gets rid of the lime, cement, admixture, too much water variables and you just need to prep background. Cost more but you only do it once. That's why we use hardwall and bonding internally rather than sand n cement background. I see this on most sites and it takes all guess work out. Builders prefer these materials as they get fewer call backs .
Render onto plastic cavity closer. Not sure either about this but as no suction I guess it set in it's own good time. Personally I would have applied a scratch coat over to create a uniform suction with rest of the wall or a splatter coat of sharp sand n cement day or so beforehand or painted cement/pva slurry over. Risk is different shrinking between the masonry and plastic. Metal lathe fixed over mechanical fixed (screwed or nailed) into wall would help.
Hope some of my comments above make sense and from what I could see there was nothing wrong with your technique just needing more experience. The power float? WTF. My dad would have loved that but think it only works if all other factors are ok, suction and mix need to be good before you can finish it.
So are you supposed to keep the finish coat of color coat stucco wet for days following application? I'm wondering because it seems like a color coat I did is dry and crumbly. I've never seen stucco guys wet down the walls after finish coat though. I know they do it after the scratch and brown, for days.
we go again Blaine, I've learnt a lot from some of your videos and always looking to improve as a plasterer. your a legend mate and I hope you come back stronger from this minor setback.
Thanks mate! I really appreciate you watching - I've learnt a lot from this lesson so it's not a complete waste. Thanks again for watching 👍
Great honest video. Whilst a hose pipe would be good, a labourer is what you need as you get older. With that baby keeping you wake at night you won't have the energy to mix and spread! Working alone on wet trades is hard graft so fair play to you. Hope you had a few quid left at the end of the job and hope the parenting is going well 👍
Fair play to uploading the video, we've all had a mare of a job at some point. It's not a fail if you sort it out, its a lesson learned. Like others have said, nothing wrong with your mix, just get the hose out when you go back :)
I must admit I was shaking in my boots before uploading this Video but I had to share it. It's a lesson learnt and the comments have helped massively. Cheers!
Just one of those days, seen many render in bad conditions & chasing the render too wet & sagging, newspapers, heaters anything to try & get the water out, live & learn, but like you said it looked a good day for it !! Dave G
Thanks for posting this. This makes you stand out from others - being absolutely honest and genuine.
One question.
I am not a plasterer, but been watching your vids to try and diy bits at my house.
If you had PVA-ed the scratch coat, sort of seal it, would it have made a difference with limiting the suction. Noticed the render over the Cavity closure part was still workable.
Thanks for posting. You learn more from mistakes, and not many channels show them.
Thank you for watching. I really appreciate it!
Can so relate to this video. I’m at 1600m above sea level - the air is thin a evaporation is fast. Plus we have +_300 days of sunshine/year. In the middle of winter despite the cold the air is even drier. So it’s really tricky. I don’t see many builders doing 2 coats… they do one layer and work in pairs - one slapping it on and the other not far behind ruling it, and if it’s a big wall a third lad floating it. Labour is much cheaper here so that is an option not available in England I’m guessing.
Great videos.
This is one of my favorite videos on TH-cam now... Thank you for posting😂🤣🤣
Granted...it wasn’t my finest hour 😂😂
Fair play to you for sharing a job that goes wrong. These videos are probably more helpful to people. Unfortunately things like this happen we just don't like to admit it. Big respect 👍🏽
Thanks a lot mate. I really appreciate that my friend!
Looks like the scratch coat was left too long and needed a good soak with the hose pipe 👍
That's exactly what i thought when i saw him using that brush instead of a water hose. That wall was dry and needed hydration over and over a couple of times at least.
As a bricklayer and pointer for the past 40+yrs I can relate to when things go wrong.I can almost guarantee when i'm doing a chimney or a patio i'll get half way through and it will P down before I can cover it up - if covering the work in itself is possible.Same as not being able to use cement after a certain time of day in the winter as it freezes and nothing goes dry especially work on or near the ground where it's damp.Then there's the opposite in the summer where you have to either wet everything down or keep dropping back as everything's going dry too fast or one part is drying different to another and some bricks absorb water a lot faster than other which can be a double edged sword.I do some rendering just small walls and plinths etc...but weather can be a nightmare at times.
Just shows your only human we all make mistakes live and learn. Love your videos and honesty 👍🏼
Spotted Quinn cement. An absolute no no for render, too rough in the refinement, its alright for brick laying or screeding. away to high GGBC(slag ash) content cement. Yes need on thePortland cement but its blue circle /lafarge. Lime is ok but will cause a slight issue.
Great honesty love it. Gives me lots off confidence. Thanks for putting this video up.
Thank you for watching matey!
Been wanting to do this in my garden to tart up and old raised flowerbed, I've sat and watched the full rendering collection today and you've made tips and videos that easy to follow I'm fully prepared to have a go myself! Thanks so much and keep up the good videos 👍
Good luck my friend and thank you for watching! I really appreciate it 😊
Hose wall then hose it again when it drys and use a cement mixer
Love this video. Even as professional contractors things go wrong and every day is a learning day.personaly I have learnt loads from these 2 vids . Well done for been so honest and up front.
Thank you so much for your kind words. I really appreciate it and I hope it helps you avoid the big mistake i made. Cheers pal and good luck 👍
What ever happened is just one of those days....Well Done with sticking with it!!!!! Good luck.
Great seeing mistakes as well as perfectly edited videos..not the mistakes but how you handle it that counts..thanks..
Great too see a video where it goes wrong. Respect to you for doing this. Every tradesmen knows the odd job doesn't go to plan.... but it's how you get over it that counts. Respect mate have a good weekend
Cheers mate...the next video will be the recovery ha! Thanks for watching my friend. I really appreciate it 👍
@@PlasteringForBeginners really looking forward to it. Very informative videos you've helped me out bundles. Will be great to see what you do next.
Enjoy your family time
Can’t beat a permashape mate! The only trowel I use here in Australia 🇦🇺 👌🏼
Thank you for taking the time to share :o)
Thank you for watching!
Hi Blaine, great work love your teaching . Keep up the good work. I am really looking forward to the next teaching on this and how to fix this kind of problem. Cheers
Fair play for showing this mate hydration is key in this situation , putting lime in your mix will make it more workable but will pull it in faster , your content that you show is one of the best keep doing what your doing mate love watching your videos 👌🏻
Living in Australia we get plenty of hot days so yes good pre soak for sure,also any cement based product will lose a lot of strength when dry too fast like that.Thanks for sharing mate
Thanks for the heads up pal...I worked in Oz and the heat was next level! Different ball game over there ha! Thanks mate. Great hearing from you 👍
Hi lots of great comments posted here, massive respect to you for posting this video but in my opinion the job is just another day in the life of a good plaster doing a tough difficult job it happens to us all I guess I'm what some people would call an old boy in the plastering game started at 16 years and at 65 years still plastering so to the point my experience on external rendering is to use a good brand waterproofer plasticizer in the base coat and soak the wall to saturation point then use a plain old sand and cement mix with waterproofer plasticizer added and that's all I've ever used. keep up the great work you do mate. 👊👊 ( totally agree with you on the marshalltown trowel)
Confucius say. Show me a Man Who Never made a mistake, Never learnt anything ! Your Greatest Strength is not in Never Failing, but in Rising Up Every Time You Fall, Your Daughter in time will look back on your vids with Pride, Chin Up Push On. BIG Thanks for your hard work making vids, every day a school day. P.S More Beer Reviews
Cheers pal. Loved this comment - it really helps! I'll get them reviews coming soon by the way my friend 😉
Cheers 🥃👍
Good you show what went wrong, I would have drenched the wall with a hose and sprayed inbetween as well. You learn from mistakes... I've made a lot worse!
Thanks pal. It's a mistake I'll never make again !
Joe Bloggs makes some very good points. Add all that to a lot of wind and a dry background and it all adds up to trouble. The wind can be hellish. I do know people that won’t use cement with added plasticisers, but good rendering is so much about the environmental conditions on the day let alone all the grey areas of this additive and that additive blah blah blah. I’ve love rendering but I also hate it sometimes.
Put it behind you. We’ve all been there and feel your pain. Be positive, healthy remember your family love and support you. It’s REALLY all that matters.
Rio
Just chuck a hose in the van!
got a tip mate, after first coat if you wet the wall first with a water sprayer or brush, helps the top coat not to suck in to the wall as much
Plastering and rendering is art bro not easy God bless you and your family
There’s one reason I know why it happened! For me to learn from it, thanks!
Fair play for your honesty fella no matter how experienced any tradesman is there’s always the chance of a a few issues especially with render 👍
Massive respect Blain. Every man has made mistakes and that is the only way to learn..I've made heaps and continue to do so. It's our humility that allows us to accept responsibility, learn and move on...that's life lessons and not just rendering, building etc. I'm a 54 yr old builder and first started rendering since I was 15 and still learning. The comment with adding plasticer and lime is spot on and where possible I always use blue circle paper bag. Waterproofer in scratch 4:1 and just lime in top 5:1:0.75. Also lay up and plumb screed banks first when doing big areas so I have something to rule off..working quickly. Comment on hiding down too much quite right as have been waiting too many times for render to go off under torchlight when I should/wanted to have been back home playing with my baby girl. Give more water to the top. My mixes are wetter so it pools slightly when it comes off the trowell onto hawk. 3rd sharp sand with builders/ pit sand too gives a better finnish. Peace
We've all been there mate. Blockwork and sun caught you out. Things that can be done though. If it goes off like that, scrap it back to the scratch (save wasting money on more gear you dont need) weak pva/water mix over the scratch. Then render again with a 4:1 mix with an sbr additive. You'll have more time to rule off and run the devil float over it. Itll sponge up like normal ! Another tip as well for on the walls that suck in normal, use a wooden darby ! Ally drags the moisture out the render and it pulls in patches, wood doesnt ! I've still got my dad's old Darby 😂 things 60 years old, but I love it 🤣😂
what is a DArby?
@@hdj81Vlimited it's a straight edge for rulling off, filling back out work.
Plastering for beginners
You rendered a wall which went wrong. In the scratch coat the waterproof you used was crap go to Wicked and get there external waterproof. When you go to top coat when direct Sun light you need to hose your walls down . By the time you wet with a brush and apply render the wall is dry. The waterproof you used in scratch coat was integral which is crap for external work Also I use lime in top coat.6 sand 1 cement 1 lime. If pulls in can bring it back with water. Nick willis 20 tears a plasterer. Like watching your videos you explain things very well
Thanks mate - I really appreciate the feedback. Cheers
Think it’s a great video Blaine. As we all know everyone learns by mistakes so it’s good you put the video out there and something we can all debate and for people like me just getting back into it have things to think about
How you recover and fix things when tney go wrong is a mark of quality too, people beat themselves up when everyone makes a mistake sometime!
That scratch coat needed soaking with a hose, when you had the top on and it had dried like that you should have scrape it off saturated the wall and started afresh
We always use render fibres , helps with cracking. Plus wet wall with hose pipe , even in winter
Cheers pal. I used to use render fibres but I think I'll look into it again. Thanks mate
I'm in the same boat at the moment and a newbie. Have you posted the video of how you went about fixing it? I know you mentioned render grab but looking forward to that video really enjoying your previous videos.
Not many would post up a fail . When is round 2
Fair play for showing the video mate, you always get a couple jobs in the year that beat you down.
You do mate. It's a bugger when it happens but you learn from it. Cheers and thank you for watching 👍
Happens to the best of us. Ive been rendering for 20yrs in Ont Canada. Ive had this happen too and it can make you crazy. Your mix is good. Same mix I use most of the time but I always get the hose out and soak the shit out of the wall 30 min before and again while my mix is setting. Not sure if you do but you should always let your mix set for 15 min then mix it again so it doesnt go off on you so quickly. Gives you more time and workability
I applaud the heartfelt honesty in showing this episode. Your a star ! Most trades wouldn't give a monkeys. I know I've employed a few of them.
Cheers pal! Thank you for watching 👍
Keep the chin up fella. We all have a shit one from time to time. Tomorrow is another day. Just have to take the hit, put it behind you and move on. Onwards and upwards buddy.
All the best mate.
Thanks a lot matey! It's a big learning curve - the hose was the Answer 💪
Most tradesmen get problems like that , you will put it right so no problem I hope you find out what caused it .thanks for the honest video
You got to appreciate the honesty 👏
Great video... 1st timer to your channel, subbed liked and will share.. I learnt a lot from that video 👍
Hi mate
Can I just check can you render over masonry paint? Or should I put some keys in it with a grinder and maybe dilute some pva in water to coat the wall first ?
Ta
Everyone has a bad day, bad luck/shit gear/weather etc, you'll sort it and move on👍
Cheers pal 👍
Great videos, but having trouble getting hold of Feb Rendamix - is there an alternative you would recommend? Does the Febmix admix do the same? Thanks
I always plan spreading render when the walls are in the shade during warmer months, just a little though for you in the future and hose the wall down and watch the suction of the water if it pulls in fast use diluted pva mix
Well done for posting this. Things dont always go smoothly or to plan. Its not an easy job especially when you are by yourself.
Cheers mate. I really appreciate that!
You need to double up on the water proofer in the scratch coat, stops the suction for top coat
We’ve all been there mate. Still a top spread 👍🏻🤜🏻🤛🏻
I live in Thailand and the locals are highly skilled at rendering, pretty poor at everything else though. I have done a lot of rendering here and its a nightmare, you have to get the backing on and the finish in 20 minutes. the floating is always done with a plastic float and a sponge attached and you just go round and round, dunking in the bucket of water and floating, it gets a great finish but as always the index finger press into the top coat to guage the exact moment to start floating. a lot of the render here also is premixed, it has special bonding and plasticisers added then you simply mix it with water. nice video, we are all human and we learn from these experiences
I was in Thailand for 3 months and watched the renderers! A real skill working in that heat and I agree that some rendering is amazing (not all of it though ha)! Thanks for watching mate and all the best 👍
Thanks so much for that. Not done much rendering but was putting my top coat on today, tonight actually as tried this morning but too hot, and about half of it just fell off? Was all sitting perfect all flush the lot. Any ideas what happened. I am a plasterer have been thirty years. Just want to be able to do an odd bit of rendering. Thanks for your time.
Hi Blaine, I’ve had the same problem mate..
I always double up on the water proofer in my scratch coat..
Or second guess it could be your knocking it up with a spinner which can set the mix too fast..
All been there buddy..
I always use a watered down P.V.A applied with a fluffy roller on the scratch coat , helps with adhesion and slows the suction down on the scratch coat , it reactavates when top coat is applied for a good bond of the finish coat , nothing worse than a blown render job , we all have had one . .
If you apply diluted PVA it will slow down the suction of the render in hot temperatures and also stop cracking which happens when the material goes off to quickly.
The wall needs to be cold as well as damp...lots of water will give you a coat of iron!! The mix sounds ok but i doubled up on Rendabond waterproofer in the scratch coat...love lime in the mix, brilliant stuff. Well done for posting this.
U need to use that waterproofing in the base coat too, it definitely stops it from drying out too quick
I did but you are right. It helps massively...most of the time 🤣
Mate I've been plastering for 20 years this has happened to me before but no worries just do it again. You needed to soak the wall maybe the day before and soak it before you mix up that's all that went wrong it's just sucked in to fast. Your a top plasterer love your videos 👍 Rev from cardiff plasterers!!!! Plus you need a hosepipe!!!
Happens to us all pal, respect for posting this! All a learning curve no matter how long we been at it always still learning in this game. I've had this before, there's nowt worse! I do a m2 as a test to see how it reacts and go from there with it but that was from learning the hard way the same lol topman
I live in Thailand. Can't find render mix out here. I put washing up liquid in the mix. Makes it easier to work with.
Hi blaine you should ave soaked wall cos dont forget that wall was block work behind that scratch coat u did so the brush u was using to wet wall wasnt enough soak the wall then let water soak in till the water stops running down wall then applie render ive done the same in the past mate no worrys
Maybe a long shot but might be the relative humidity that day. RH meters are cheap as chips and can warn of bad conditions.
Did you use a different waterproofer in the scratch to what you'd normally use?