FIXING FIBERGLASS MISTAKES!
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- เผยแพร่เมื่อ 12 ก.ย. 2020
- When learning how to work with fiberglass, something to keep in mind is that any mistake can be fixed ;-)! Last video I knew that I messed up on the bow, so this week I'm showing how to correct it.
Hopefully this will be helpful and take a bit of stress out of a few of your projects :-)!
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Great vid, Andy! I appreciate you for taking the time to show and explain how to fix faux pas that are a little more common to we amateurs.
I really appreciate your teachings Andy, I currently have a small boat project going on at the moment, with some glassing, spidering and gel coat. Before finding your channel I did not have a clue, I now feel confident to get the job done, might not be the best job in the world, but it will be good enough to get this dinghy on the water and give me much pleasure fishing, soo thank you 👍🍻
Fantastic education 👍 we all make mistakes, but as you say fiberglass is great as it can be easily sorted out. Currently renovating my Shetland here in England and have learned loads from watching your Chanel and putting it to practice.
It's my 1st boat and needs loads of work, it's a challenge lol but great education.
Thanks Andy, keep up the good work.
Thanks brothef, i did 2 polyester courses, and am working with it regularly! I learn from u thanks, it kind of comes back and motivates! Thx!
Love that you include the "not so ideal" parts of your repair. Very helpful
Excellent video! Timely and very helpful indeed. I feel that your fix was in fact the best option for finishing the seam at that high stress point of the prow (cutwater).
Great vids Andy. Am bringing a Squib back to life over the winter and your step by step process is spot on.
While watching the earlier video, I'd wondered what you were going to do about tying in the glass at the bow.
Now we know.
Thanks for the video, but we'd still have loved to see you gelcoat it!
Keep in mind that you have many fans, in this awful pandemic, who are living vicariously through YT videos, and especially yours!
Stay well!
Andy, thank you for your most-valuable & informative videos. For a fiberglass-work newbee, you've saved me tons of time & money; therefore, new patreon ..
Great video series getting ready to do major repair on fiberglass canoe this spring so I need all the tips I can get. I like how you added a full new coat of fiber flass cloth after repairing I hadn't though of that.
I love how he didn't side step to get the 2nd camera out of frame, it's a diy project with a single person filming. Oddly Keeping small details like that in the final edit is humblingly refreshing.
Sunday routine is almost finished. First Andy, then Mads. Thanks for the vid
Great video Andy, I do think that the so call mistake you made was on purpose so that you could show how to fix any mistakes that anyone could make. Thanks for doing more work than you would have just to show us any mistakes made while doing fiberglass can be fixed.not many would do that and just try to talk about it instead of showing. Love your channel!!!!!!
Liike this guy. He keeps it simple yet i swell informed. Tells you stuff other guys leave out.
Great video! I’m just getting into fiberglassing and this helped me calm down after creating a disaster of a speaker box.
I have always enjoy working with fiberglass. As you said you can always go back and fix the mistakes. I really like watching your videos. Always a chance to learn new stuff. The only down side for me is the videos are to short. Lol! I do understand you have other things going on besides the you tube videos. So needless to say I can't wait for the next video. Have a great day!
Hey Lance.. I have a question for you.. I have a Maxum 3700 SCR and it did not come with a radar arch.. The previous owner took it off.. I have NO idea what he was thinking.. But it is gone. So I found a 3300 SCR radar arch that I bought for $200. That was a God send. But there was a 14" gap between the older radar arch and the newer one being smaller stretching across the boat.. I cut it into 2 pieces and now going this week to set it up with a support board in the middle between the two sides and putting it on the boat and then start filling in the middle with plywood I am guessing.. How should I approach repairing this with fiberglass between the gap? I am seeing videos of fiberglassing this or that, laminating with fiberglass and fixing holes.. But nothing that is a gap of 14 inches.. Where could I find these answers and make sure the radar arch is strong and sound as it can be? Thanks..
Nice work. I had to tear out some work this week for cure failure. I suspect it was old MEKP. A video on these types of issues would be appreciated
Total Boat is a great company to deal with! Love their products!!
Great explanation of everything... especially great choice of music!
Always love these videos. You have single handedly taught me so much
Great video. You answer so many questions. Thank you 👍👍
Great vid Andy nice to see your back at it last Sunday just wasn’t the same
We are a marine dealer and you help me move from bodyman to boat man thanks 🙏 just taking it all in. I am getting some total boat fairing compound too !
Thats what I appreciate about your videos, when you mess up you not only do a demonstration on how to fix it, you also admit you made a mistake and dont try to say something like "oh i set this up on purpose to show you....."
Thanks Andy. Great information as always 👍🏻⛵️
Jeesh you make rolling out that CS glass look easy. Specially when you had to tear into a bit. I seem to get that stuff all over me and everything around me 50% of the time.
As always...great advice Andy thanks
Thanks for the decal Andy!
That was really cool giving Zach’s Garage a shout out for his snappy trick!!!
Could it be?! Is Andy watching my videos?! I will have to up my quality! 😂
@@ZachsGarage1 Wow, very cool when your favorite boat restoration guys give each other shout outs!
So glad that you mess it up so I can learn! Thanks!
On my next boat build video, I’m going to link one of your past videos. If really helped me! Keep up the great work! Appreciate that you don’t cut out the wonky bits!
Geez...room and board and food I'll come apprentice for a month no pay! Watched the 3 of the sail boat repair...patch hole, reskin and fix skin. Great job, this reminded me why I subscribed before the sailboat.
My offer is serious.
Very helpful. Thanks for showing how it’s done. 👍
Glad it was helpful!
Love your channel. Just wondering why you didn't sand the paint off? Is it not necessary? Please explain. Thanks love your work and explanations.
Another awesome video Andy!!!
Love the video transition timing. Really keeps the viewer...
Always a great video! Thank you man, i have learned a lot from you! Greetings from Greece!
Thanks for watching!
I absolutely love watching your videos Hey Andy I have a question how many layers should you put down at once should you put what are the time Inlet cure?? Any advice would be greatly appreciated
Love the videos, ive learned so m7ch from you but i have a question, What oz chop strand should i use for waterproofing the inside of a shower on our yacht..
as usual you're right... doing things in proper steps in important! i.e: wake up early on sunday, straight to the couch to watch your latest video, comment and thumbs up to uprank in youtube algorithm.... THEN start life.
yep.
Just as how Sunday morning should be ;-)!! Thank you!
Great episode! Question...can I use PVA to help cure resin that may have been a little light on hardener? I found some tacky spots after a couple days.
Andy,
Great work and realy great tutorials.
Only question is, why you didnt remove that U-bolt?
Best regards
Have you ever think making online courses about this kind of job? You are legit.
Great video, thanks for the tips on the relief cuts on such a difficult transition area. Have you worked with Carbon Fibre cloth? I think that would be a great vid. Once again thanks!
I need to refiberglass the keel of a Skipper 20 for bother strength and waterproofing. Does chopped strand fiberglass add the protection I’m looking for versus woven?
Oh oh oh...this looks so much easier than it really is 😊😊😊 When you see Federer play, it's also kind of misleading on what to expect when you enter the court...
Hi Andy, good video. I was wondering if alexseal primer can be painted directly over laminating resin or do I need to apply a flow coat with wax in it before painting?
Hello! When you're laying down CSM and are painting it instead of gel coating it, do you sand it smooth prior to painting? Fair it? Thanks in advance
The stem is an area that takes a beating on any small boat, and if the entire hull required lamination there may be weak spots in the radiuses at the stem and around the dagger board hole and at the edges of the transom. This project should include critical examination of those areas. On to the laminating of the stem area, yes, a torn strip is the best method here, although the strip used is a bit too wide. Since there is fresh fiberglass on each side of the stem, the bond is primary; fresh to fresh. A narrower strip can be used, remembering that a feathered edge should be ground to about a 7 to1 width to thickness minimum should be used. The strip's torn edges only have to be a little wider. More glass than that becomes harder to hide during finishing, especially the further away from the turn of the shape at the stem.
If I was wetting out that patch, I'd probably would start by rolling on resin right down the length of the repair on the narrower strip and then wet the edges gently with one end of the roller, again lengthwise. I wouldn't want to start dragging material away from the turn of that shape. That would make the repair thinner. The narrower strip will lay down better and require less tearing in darts.
The glass on this shape shouldn't be worked until the wet out is fairly thorough, when the glass turns translucent, clear-like. Wrinkles that begin at the turn of the shape and lead outwards can then be
patted down with a wet brush to flatten the repair prior to rolling-out. I normally use a 2" natural bristle varnish brush, after you are through destroying chip brushes, you might come to really like the varnish brush. I use a 3" roller (3/8" nap) and a gallon water jug with part of the top cut away leaving the handle, this has worked for me since the 50's.
Speaking of that long time, I've had the opportunity to teach laminating allot over those years, and I've found that watching someone do the work is about the best way to learn it. Just writing about it or telling someone is second best. This Boatworks guy knows quite a bit about the trade, more people first starting out with these projects need to watch. And if you've never put catalyst to resin before, start small, one square foot small.
I was wondering the correct way to repair these issues. Thanks.
Hi
I have been waiting - great is having the next installment. Perfect. Still do not why you did not use 1/2 oz cloth
Great project , your kids are lucky
Andy, do you have any recommendations on which paint for an aluminum Jon boat? Preferably something that can be rolled smooth or with a texture for grip. Thanks!
Great video as always Andy. What sander is that you're using?
Would it be okay and look good if you sanded the hull down after that glass was laid and applied paint rather than gelcoat? Would it look a lot different?
I have a question about putting two pieces of fiberglass board together do you have a video I haven’t found it. I’m doing a deck repair where I removed the top skin and cleaned out the rotten Bohl Cell core and now I’ve replaced the skin over the top of the new core . trying to find the best solution for putting the two seams together
In a 1979 sunhatch the engine stringer need to be fixed they had wood with glass over them. Over years wood rotten and now needs to be fixed. Can I replace hard wood and pour a glass slushy with tearing mat up into pieces and then pour the mixture in and around the wood to fill in? What glass and resin or poly do I use? Help? Or bad idea?
Gussset I think word you were looking for
Nice work mate
Andy can you gel coat over total boat polyester fairing compound
“Needs wax to seal a laminating surface”? Right need to go back and find that video then! Was that a dedicated gel coat video I’m guessing? Thanks again Andy, very honest to show how to deal with SNAFUs!
Poly will never cure without being sticky as long as there is air touching it. Adding a wax will allow the wax to rise to the surface before the resin cures acting as a barrier between the resin and the air. That gets rid of the tackiness so that it can be sanded
Hi Andy, how can I get to view your gel cost video. I just don't know enough about gel coating. Thanks, Keith.
was wondering why you use gel coat with wax to cure instead of adding wax to the resin?
What Products will Help me Repair a few Spots in my Old boat Hull .. The Bottom of the Boat is a Mirror of the Outside.. Fiberglass Outside with thinner Glass inside with Water soaked into the Middle "stuff", or can I Repair with some type of Filler, Please Sir??
another interesting video. Thanks very much.
Hi Andy. Done like a pro now you have supplies. Great job, as always. Thanks
When are you doing the vid on roll on paint that don't need tipping, thanks from UK.
I have a Rebel 16 I want to fix/paint the hull. How did you you turn the boat over? ha
If one wanted to extend the fiberglass to both sides of the bow eye all the way to the terminating edge of the bow, could you tear a hole in the mat and place over the eye and resin all of it instead of doing it the way you did it?
Like to have seen that gel coat process. Can you link a video to where you’ve done that?
Would like to see how you did the gelcoat i am busy with a similar project
Pls refer me to vids where you do it
is gelcoat without wax the same as laminating gelcoat?
Have you used plascore in any builds or repairs? A how to video on nidacore (plascore) would be awesome. Keep up the great work.
Chopped strand glass has no structural integrity to speak of and just forms a protective barrier. Keels are often covered with a layer of chopped glass then a layer of biaxial weave laid over at a 45 degree angle so the strands cross the peak at 45 degrees instead of 90. The first layer covers all the chopped with some extra, then one or two layers less wide to taper the area up to the peak so fairing is good. Some even use Kevlar as the woven layers for the added protection over the keel that the Kevlar provides. All this allows the woven layers to cross the peak of the keel and smoothly lie so no bubbles or voids occur. That is how the guys make smooth edges to wings and such on aircraft and proved much more structural integrity to the areas. Just a thought.
Andy, I'm rewatching this one. I realize it's older but, why did you leave the bow eye on while glassing the bow? I'm currently doing a 14 ft hull.
What is the percentage of wax in the gelcoat ?
Great video as ever Andy, did you consider putting narrow strip down the centre before the wide piece basically to keep the whole repair in that area 2 layers thick??
It didn't cross my mind at the time, but suppose I could have :-)
I thought the same thing...in order to double strengthen that point, but wasnt sure if it would still slightly 'mohawk' the end product.
Great work!
Which Festool sander do you use?
What sander are you using? And how many rpm?
What kind of roller do you use
Alternative: Wet out the mohawk. When green, i.e. gelled and stiff but not hard, cut with a sharp hook knife (carpet knife) right up to the hull. Let harden. Then sand. A lot less dust and flying fibers this way.
And, what's with leaving the bow eye in the way? Get it out of there for a project like this.
ok after this primer ? after gel
Hey everyone... Listen, I have a question.. I have a Maxum 3700 SCR and it did not come with a radar arch.. The previous owner took it off.. I have NO idea what he was thinking.. But it is gone. So I found a 3300 SCR radar arch that I bought for $200. That was a God send. But there was a 14" gap between the older radar arch and the newer one being smaller stretching across the boat.. I cut it into 2 pieces and now going this week to set it up with a support board in the middle between the two sides and putting it on the boat and then start filling in the middle with plywood I am guessing.. How should I approach repairing this with fiberglass between the gap? I am seeing videos of fiberglassing this or that, laminating with fiberglass and fixing holes.. But nothing that is a gap of 14 inches.. Where could I find these answers and make sure the radar arch is strong and sound as it can be? Thanks..
Andy, would you take a quick moment next week and explain laminating resin, why it needs gelcoat (with wax) to cure. What is going on with the two products? When do you cure resin? How long do you work with it before you cure it ? Can you do anything with resin after it’s cured. Just explain the two products and how and why. Thanks Andy, love the channel.
Needs wax to create an air barrier in order to fully cure. You can buy finishing resin or add or own wax to poly laminating resin or gel coat without wax. At a beginner level, I purchased finishing resin and gel coat with wax just because its less work/measuring for the beginner
I loath sanding laminating resin. If I ever make a mistake along the lines of that mowhawk i will continue to wet out all of the glass. Once its set, I apply a coat of waxed resin and sand down from there. Any cloth not touching your surface or any airbubbles will come out in the sanding process. Saves on frustration and sanding discs
Is that a proper rotary disc sander? I'm trying to find a try rotary sander , not an oscillating sander which is more of a finish tool. I want a hogs off meat type tool.
great work.
❤could you have used a epoxy resin?
Uk we have emulsion and powder bound csm. Emulsion is cheapest and most common.
I am currently restoring a 20ft runabout is there anyway that I can contact you with a few questions without going through comments if not I understand thanks!!!
Yo should use saran wrap to bent that weet fiberglass any way you want over the bow. Easy.
Curious as to why you used total boat gelcoat instead of alexseal. You seemed to praise the alexseal immensely in a previous video. And thanks soooo much for your videos! I've been learning quite a bit and is going to come in handy on my 85' 4 winns deck boat rebuild!
Alexseal is a paint, not a type of gelcoat :-)
@@boatworkstoday Thanks for the quick reply, tho mine wasn't lol. Sorry. Guess I misunderstood that video.
*sits back and nods head*
"Yes, master." (still learning)
Andy, is there a good book you can recommend that explains the different types of resins, gel coats and mats - and when to (or not to) use them?
it's not a book per say, but I do have a guide for download that covered the different resins, when and where to use each that might be helpful :-) www.boatworkstoday.com/product/fiberglass-101-download-guide-choosing-the-right-resin-for-your-project/
Fiberglass Boatbuilding for Ametuers by Ken Hankinson. By far the best resource for composites in general and boats in particular.
@@boatworkstoday Definitely going to download it - but I'm also interested in when/why you would use chop strand mat vs. woven fiberglass as well as the different types of gel coat and their applications.
Thanks!
I need this video right now 😅
Andy, TotalBoat epoxy question. I was resurfacing teak handrails, so cleaned them up and tried to coat with Totalboat 5:1 epoxy, prior to varnish. The epoxy just fisheyed tremendously. I wound up sanding everything, cleaning it again, and reapplying. Same effect. At that point, I changed plans and went to straight Cetol with fantastic results. I'm wondering if the epoxy can go bad. It's only a year or so old, but could have been in freezing temperatures for a night or two last winter.
Did you wipe the bare wood down with acetone prior to applying the epoxy? The oils in teak can cause the eyes :-/. Also I'd probably try their 2:1 as it's a bit more flexible than the 5:1. Epoxy should last a very long time; even if it freezes a couple times, but as long as the job got done and you're happy with it, that's all that matters ;-)!!
@@boatworkstoday The first time, I just used soap and water, the second time I used acetone. It is a project boat, primarily to learn repairs, so I'll try the 2:1 next time
the music today was great xD
If the clear coat is worn down to the metal flake where your boat tarp rubbed how can I fix that with out doing the whole thing ?
You'll have to spray the area again with metal first if the flake has discolored, then go overtop with a clear. If you time it right you can then go around the perimeter of the spray area with what's called a blender and that will somewhat melt the new clear into the old. Next day while the clear is still a bit tender a light buffing and it should blend in really well :-)
I want to do this to fix my 8' dinghy which I've had for almost 40 years. I'm a little concerned about the added weight of additional layers of glass and gelcoat.
Don't be , a few patches won't change its draft , even if you use five kilo of matting and a gallon of resin as it's spreading the ten kilos out evenly . My dinghy was a cheap fibrecell boat and I added three layers of chopstrand to the inside, overkill yes but I added nearly thirty kilos to the hull in total in resin and matting and the water line has barely changed.
Andy, how many layers of FG should I put on a haul of my boat build?
It’ll be a 42’ mono
That depends where your laminating. Along the topside it may be 25mm-30mm thick. along the bottom more like 35mm-45mm. If its a yacht with a bolt on keel then certainly even thicker. If its powerboat then the hull would be 40mm or more and the engine stringers would have at least 15mm of glass over them for their entire length. It would also depend if your using just CSM or CSM with WR or with more exotic cloths Carbon , Kevlar, triaxial etc The boat architect may have given some clues or you could get some ideas from owners at the marina who have drilled through their hulls to put fittings on.
How can you get good bond glassing on top of gelcoat/topcoat ? (that red stuff)
I wonder the same..
I just did my very first glass work on a bass boat this weekend after watching the first part of this video. Glass work went great but I am having issues with gel coat. How long should I wait before sanding the seal coat of gel coat with wax additive. Also I have to redo the entire top cap in two colors + metal flake. Will gel without wax harden so you can sand and shape it or does it have to have wax? I know wax goes in the final layer but I dont want to spray every layer with wax so I can shape and blend it with the other colors and flake if I dont have to. I've been told it will take about 5 layers of sprayed gel coat. Also how much of a void will gel fill in without showing through? Like small divets in the fiberglass.
You'll find using un-waxed resin OR gelcoat difficult to sand as the unwaxed material is sticky and clogs the sandpaper.
Unfortunately, if you want or need to sand between coats you should use waxed resins/gelcoats.
Sprayed gelcoat which you can apply much thinner than brushing requires special care in the amount of a] wax, b] styrene, c] catalyst and d.] additional accelerator. you add. to ensure full cure generally you need to apply 5-10 mils or more.
Less than that and it can be undercured and any additional gelcoat may attack the previous coat. this is seen as "tripe" or styrene attack.
It becomes much more technical if you wish to spray thinner coats to ensure full cure in balancing the number of additional additives.
Your starting with some fairly difficult gelcoating with 2 colours and metalflake with a clear topcoat.
Good luck!!
Lovely video
Why don’t you add a window on the bucket? That way you can see if it’s full?