Those diamond Cup wheels are great. If you don't have a dust shroud you could hold a dry vac hose while your grinding and purchase a bag for your dry vac.
Perfect!, just one question, this tool doesn't wear down concrete? I mean, a little of thing layer will be removed from original after try this out? - Regards.
Just an observation, if you use water to keep the dust down it works but there is a sweet spot you have to figure out. Too much water and the cup doesn’t wear down the surface as fast and too little water and it doesn’t keep the dust down as well. So be patient you won’t regret it. Don’t forget to plug into a gfci circuit for your own protection.
I bought this same exact cup wheel for my dewalt angle grinder, but I can't figure out how to put it on. When I screw the cup wheel the round nut (called threaded clamping nut in the manual) that screws on doesn't have room to thread???? The cup wheel takes to much of the thread. I'm not supposed to run this without that clamp nut I don't think.
Can I do with with basement walls? I need to remove the old paint and apply a basement waterproofing material called Xypex or Permaflex. The company suggested sandblasting but when I called a sandblasting company, they did not recommend it. What grinder has an adapter that can be hooked to a shop vac? This maybe a stupid question, but if you wet the surface, is there less dust? Sorry, I am new to this...Thanks
Hey if you haven't gotten your info elsewhere yet, I'm currently doing what you're looking to do! I knew nothing about grinders, etc but did HOURS of research plus my husband has a little experience with grinders at work. My basement not only has paint but layers of joint compound which grew mold, as you NEVER use joint compound to fix basement wall cracks. Previous owner must've been very ignorant to materials, as concrete or crack injection wouldve been proper. They left me with one hell of a NASTY job! Anyway scraping was never going to get me finished. The angle grinder got me through a 6×6 square foot section in 30 minutes! I'll likely need a few days to finish my large basement with the joint compound all over, but just doing paint you may get it done faster. So to answer your question about a dust shroud. 1st off just to ket you know a lot of stores like home depot will rent you a PRO grade dust extractor, which works the best over a shop vac! That's what a pro would use if they came in. There are some grinders that use a proprietary dust shroud, but that's expensive. A universal dust shroud is cheaper and often fits multiple models, AND fits multiple shop vac hoses. It has to be specific to your size grinder though. I've got a 4 ½ ryobi grinder. I bought a dust shroud from harbor freight $25 that covers grinders from 4-5". You can find larger ones. Home depot sells universal dust shrouds, although not the best reviews. No one is totally happy since they don't always make it easy to use certain wheels, the bristles may protrude too far or not enough. I'm using a RIGID brand 4" diamond cup wheel under my dust shroud, & its hard to get my wheel flat. So I put a SLIGHT angle on it, which technically the diamond cup is best & safest used flat from my understanding. Im using it at a 10-20° max angle to get the diamond cup wheel to make good contact. Also please keep the wheel guard on if you don't use a shroud, as they usually have a guard in it technically. But i see so many videos on here where they've taken the guard off for flat grinding, not necessary & unsafe! You probably want a diamond cup wheel for removing paint or coatings in prep for waterproofing! I tried the paint stripping & abrasive discs, & they only scuffed the old paint but didn't fully remove it! You may have more luck with one if your paint is very brittle & thin though! But for these waterproofing paints as you know, you need a surface totally free of old paints & materials. Be very careful & gentle until you get a feel for it! I gouged my concrete a tiny bit pressing too hard with the diamond cup wheel, luckily I was able to smooth that out a bit. Lol Rustoleum does sell paint stripper meant for concrete, but you'd want to turn off any gas & pilot lights in the basement till fumes evaporate! Then you have to use an after wash to remove the strippers, its a hassle too!! I'd have tried that 1st though if it wasn't for all the joint compound! That may or may not be easier & less messy than grinding. Wet grinding is not necessarily less messy, but easier to contain. Wet grinding you'll have a slushy of concrete dust all over you, walls, & floor. Its better in my opinion than dust on everything in the entire house! BUT a lot of grinders & discs arent rated for wet grinding. Diamond cup wheels do often say for dry or wet use. If your grinders a cheap small corded guy like mine, I'd try just spraying it damp, but not garden hose wet.. im trying that today! It may gum up your diamond cup segments, the grinder, & shop vac though so be careful. Also you may need a specific filter in your shop vac, mine has to have one just for wet use, & the bag removed. So annoyed to find I needed to buy another filter! All these methods depend on the situation, but I try less messy options 1st like paint stripper, scraping, wire brush, or paint stripping discs if the basement is smaller. If you try chemicals, get a respirator meant for that if possible. Silica dust in concrete is very dangerous when airborne & is there possibly lead in your paint? Mines OLD so I treat it all like lead. Please use AT LEAST a P100 rated respirator for Silica protection, not just an N95 dust mask! Use a face shield & goggles, as well as gloves, long clothes, & good shoes! Once you remove all paint make sure you use a concrete etch & cleaner if you're doing waterproofing paint! If your waterproofing is one of those rubber like coatings, follow those directions whatever they are. There are safer etchers now days that don't contain muriatic acid, which is basically weaker hydrochloric acid! Drylok, Rustoleum, krud kutter, etc sell safer etch & cleaners. If you don't do this, the new waterproofing paint may not adhere properly, & warranty will be void. Also if you have a large basement & the money to do so, I'd honestly buy a larger grinder! Idk what all sizes they make but I believe its 4, 4½, 5, 7,9. Not sure what may be in between those for home use. But If I'd known what project I'd end up using this dang thing on, I'd have gone with a 7"!! I wouldn't go any bigger control wise on old block walls & my weak arms. Lol anyways good luck with your project! Its going to be hard & exhaustive, but you can do it!!! Also no stupid questions, especially with something so specific like this! We're all new at it till we try it! If you think of anything else & I have an answer, I'll be happy to help!
Thank you for sharing your experience. I am about to attempt grinding off the paint from my basement concrete block walls and possibly floor. The walls have a couple layers of regular paint and then a waterproof paint that had a grit to it. I finally fixed the problem allowing the water to leak in one area of the room. I’m planing on using a treatment that gets sprayed onto the ways with a garden type sprayer. That is supposed to waterproof and resist radon gas penetration. It seems like a simple enough process and then I’m using just a quality paint. I’ve never used a grinder before. I am actually a little on the scared side but I feel I have no choice. I use this basement area as a bedroom so it needs to be clean and safe. I have a 4 1/2 grinder and am purchasing a shroud and a Diamond cup disc. I also have a shop vac. Of course I’ll get PP gear as well. Wish me luck. P.S. I can’t remove the furniture that’s already in there so I’ll cover it all the best that I can. If you can think of any additional advice, I’d appreciate it. Thanks
@@beverlyp.4078 Add a filter bag in your shop vac or a dust deputy which is a cyclone like container to avoid using to many bags and aiding in the dust control.
I own a small 3 story house. The basement floor has a ton of paint on it. I want it epoxy stained instead! My biggest worry is that if I grind the paint off I’ll have a thin layer of dust all over my house. How do I prevent this because if I gotta dust concrete paint off everything forget it!!!
George Louis: I am also concerned about the dust. What did you do to cut down on it? I'm thinking about keeping water poured over the area I'll be grinding. Thanks.
It was the same cup. And I would say I could get about 10 jobs the same size as this one done before it started being less efficient. The metal curved pieces, which are the teeth, will wear down to the cup over time
🦘🦘🦘🦘 ... I found this GREAT IDEA on another site & want to share it if anyone has this same problem & how to fix it. I had a terracotta pot with a wonderful indented fancy pattern etched into it when it was made, around the top & bottom sections of the sides of the pot. It had been well painted with thick black paint then sprayed over with a tough shiny, hard, silver paint over the black, but ONLY on one side of the pot!! I wanted to strip the paint to return it to pure terracotta again & fully preserve the pattern. ................ I read that full strength 🌿🦘EUCALYPTUS OIL🦘🌿 dissolves paint. I found a 50ml bottle in my cupboard & used an old toothbrush to brush in & massage into the paint: small amounts of pure Euc oil. I let it work into the paint, scrubbing it in. Soon the top silver layer dissolved away so I dripped on more oil & used old tooth brush to scrub into the black paint within the intricate etched pattern. Soon the black paint turned to tar like substance as it softened & mixed with Euc oil. I used a small wire brush & a few squirts of WD40 to scrub away the softened tar like thick black paint. WD40 will not work by itself on paint, only use to remove the tar like paint after Euc oil works. It does not take a lot of Euc Oil, use sparingly drop by drop. Clean brushes of build up if needed, with turpentine or WD40 & rub with old rag. Worked well. Used an angle grinder scrub pad on large smooth portion of pot. Wiped it with a good smear of Euc oil & left to soften, then used angle grinder with pad & it came off in one buzz. Cheers.
@@b.k.williams ok thanks, the reason I asked is some kids from my community, threw paint on a few houses including mine, its just big splashes on my brick here And there. I hope this works.
Thanks for the simple version for this vs the lies and chemicals and ridiculous contraptions that are out there.
You just saved me multiple hours of sand blasting. Thanks!
Those diamond Cup wheels are great. If you don't have a dust shroud you could hold a dry vac hose while your grinding and purchase a bag for your dry vac.
I keep
Reading that the shrouds don’t fit or or horrible with diamond discs…. I think having a shop vac going is the best like you said
Perfect!, just one question, this tool doesn't wear down concrete? I mean, a little of thing layer will be removed from original after try this out? - Regards.
Yes it actually can eat away at it. As long as you keep it flat and don't apply too much pressure you should be fine
This is so satisfying
B.K. Williams: Question: Do you recommend putting water over the concrete to cut down on the dust? Thanks for posting.
Haven't tried it yet but I'm sure it could work! Iv never had to do it inside and thats the only time I would really worry about it
@@b.k.williams Thanks, dude.
Just an observation, if you use water to keep the dust down it works but there is a sweet spot you have to figure out. Too much water and the cup doesn’t wear down the surface as fast and too little water and it doesn’t keep the dust down as well. So be patient you won’t regret it. Don’t forget to plug into a gfci circuit for your own protection.
@@pasqualeparente9776 Thanks for the info.
Great job
WooooooooooW This is GREAT!!!! Thank you!!
Thanks for Watching 👍
I bought this same exact cup wheel for my dewalt angle grinder, but I can't figure out how to put it on. When I screw the cup wheel the round nut (called threaded clamping nut in the manual) that screws on doesn't have room to thread???? The cup wheel takes to much of the thread. I'm not supposed to run this without that clamp nut I don't think.
Can I do with with basement walls? I need to remove the old paint and apply a basement waterproofing material called Xypex or Permaflex. The company suggested sandblasting but when I called a sandblasting company, they did not recommend it. What grinder has an adapter that can be hooked to a shop vac? This maybe a stupid question, but if you wet the surface, is there less dust? Sorry, I am new to this...Thanks
Hey if you haven't gotten your info elsewhere yet, I'm currently doing what you're looking to do! I knew nothing about grinders, etc but did HOURS of research plus my husband has a little experience with grinders at work. My basement not only has paint but layers of joint compound which grew mold, as you NEVER use joint compound to fix basement wall cracks. Previous owner must've been very ignorant to materials, as concrete or crack injection wouldve been proper. They left me with one hell of a NASTY job! Anyway scraping was never going to get me finished. The angle grinder got me through a 6×6 square foot section in 30 minutes! I'll likely need a few days to finish my large basement with the joint compound all over, but just doing paint you may get it done faster. So to answer your question about a dust shroud. 1st off just to ket you know a lot of stores like home depot will rent you a PRO grade dust extractor, which works the best over a shop vac! That's what a pro would use if they came in. There are some grinders that use a proprietary dust shroud, but that's expensive. A universal dust shroud is cheaper and often fits multiple models, AND fits multiple shop vac hoses. It has to be specific to your size grinder though. I've got a 4 ½ ryobi grinder. I bought a dust shroud from harbor freight $25 that covers grinders from 4-5". You can find larger ones. Home depot sells universal dust shrouds, although not the best reviews. No one is totally happy since they don't always make it easy to use certain wheels, the bristles may protrude too far or not enough. I'm using a RIGID brand 4" diamond cup wheel under my dust shroud, & its hard to get my wheel flat. So I put a SLIGHT angle on it, which technically the diamond cup is best & safest used flat from my understanding. Im using it at a 10-20° max angle to get the diamond cup wheel to make good contact. Also please keep the wheel guard on if you don't use a shroud, as they usually have a guard in it technically. But i see so many videos on here where they've taken the guard off for flat grinding, not necessary & unsafe! You probably want a diamond cup wheel for removing paint or coatings in prep for waterproofing! I tried the paint stripping & abrasive discs, & they only scuffed the old paint but didn't fully remove it! You may have more luck with one if your paint is very brittle & thin though! But for these waterproofing paints as you know, you need a surface totally free of old paints & materials. Be very careful & gentle until you get a feel for it! I gouged my concrete a tiny bit pressing too hard with the diamond cup wheel, luckily I was able to smooth that out a bit. Lol Rustoleum does sell paint stripper meant for concrete, but you'd want to turn off any gas & pilot lights in the basement till fumes evaporate! Then you have to use an after wash to remove the strippers, its a hassle too!! I'd have tried that 1st though if it wasn't for all the joint compound! That may or may not be easier & less messy than grinding. Wet grinding is not necessarily less messy, but easier to contain. Wet grinding you'll have a slushy of concrete dust all over you, walls, & floor. Its better in my opinion than dust on everything in the entire house! BUT a lot of grinders & discs arent rated for wet grinding. Diamond cup wheels do often say for dry or wet use. If your grinders a cheap small corded guy like mine, I'd try just spraying it damp, but not garden hose wet.. im trying that today! It may gum up your diamond cup segments, the grinder, & shop vac though so be careful. Also you may need a specific filter in your shop vac, mine has to have one just for wet use, & the bag removed. So annoyed to find I needed to buy another filter! All these methods depend on the situation, but I try less messy options 1st like paint stripper, scraping, wire brush, or paint stripping discs if the basement is smaller. If you try chemicals, get a respirator meant for that if possible. Silica dust in concrete is very dangerous when airborne & is there possibly lead in your paint? Mines OLD so I treat it all like lead. Please use AT LEAST a P100 rated respirator for Silica protection, not just an N95 dust mask! Use a face shield & goggles, as well as gloves, long clothes, & good shoes! Once you remove all paint make sure you use a concrete etch & cleaner if you're doing waterproofing paint! If your waterproofing is one of those rubber like coatings, follow those directions whatever they are. There are safer etchers now days that don't contain muriatic acid, which is basically weaker hydrochloric acid! Drylok, Rustoleum, krud kutter, etc sell safer etch & cleaners. If you don't do this, the new waterproofing paint may not adhere properly, & warranty will be void. Also if you have a large basement & the money to do so, I'd honestly buy a larger grinder! Idk what all sizes they make but I believe its 4, 4½, 5, 7,9. Not sure what may be in between those for home use. But If I'd known what project I'd end up using this dang thing on, I'd have gone with a 7"!! I wouldn't go any bigger control wise on old block walls & my weak arms. Lol anyways good luck with your project! Its going to be hard & exhaustive, but you can do it!!! Also no stupid questions, especially with something so specific like this! We're all new at it till we try it! If you think of anything else & I have an answer, I'll be happy to help!
Thank you for sharing your experience. I am about to attempt grinding off the paint from my basement concrete block walls and possibly floor. The walls have a couple layers of regular paint and then a waterproof paint that had a grit to it. I finally fixed the problem allowing the water to leak in one area of the room. I’m planing on using a treatment that gets sprayed onto the ways with a garden type sprayer. That is supposed to waterproof and resist radon gas penetration. It seems like a simple enough process and then I’m using just a quality paint. I’ve never used a grinder before. I am actually a little on the scared side but I feel I have no choice. I use this basement area as a bedroom so it needs to be clean and safe. I have a 4 1/2 grinder and am purchasing a shroud and a Diamond cup disc. I also have a shop vac. Of course I’ll get PP gear as well. Wish me luck. P.S. I can’t remove the furniture that’s already in there so I’ll cover it all the best that I can. If you can think of any additional advice, I’d appreciate it. Thanks
@@victoriagirdler4795 thank you!!
@@beverlyp.4078 Add a filter bag in your shop vac or a dust deputy which is a cyclone like container to avoid using to many bags and aiding in the dust control.
Omg! Thank you so much!
No shroud. No gloves. Probably no safety glasses either. 😂
I did have safty glass but that was it 😆
Thanks for watching
I own a small 3 story house. The basement floor has a ton of paint on it. I want it epoxy stained instead! My biggest worry is that if I grind the paint off I’ll have a thin layer of dust all over my house. How do I prevent this because if I gotta dust concrete paint off everything forget it!!!
You can get an adapter for your grinder that let's you hook a shop vac up to it. But even with that I'm sure you'll still get some dust
George Louis: I am also concerned about the dust. What did you do to cut down on it? I'm thinking about keeping water poured over the area I'll be grinding. Thanks.
Is there a bigger tool that I can use that would cover a larger area when grinding off the paint?
I am sure there is! This was just the most cost-effective way for this one job.
Thanks for Watching!!
It looked like you changed out the cup wheel in the video am I correct? How long do they last?
It was the same cup. And I would say I could get about 10 jobs the same size as this one done before it started being less efficient. The metal curved pieces, which are the teeth, will wear down to the cup over time
This product name please
Dewalt dimand cup wheel
Tell me why I had to scrabble away paint on my drive way wall with nothing else but a steel brush and picking tool for 1 week.
Been there before! Hope this will help for next time!
Thanks for Watching!
Thnku so much 👍
Thanks for Watching!!
🦘🦘🦘🦘 ... I found this GREAT IDEA on another site & want to share it if anyone has this same problem & how to fix it. I had a terracotta pot with a wonderful indented fancy pattern etched into it when it was made, around the top & bottom sections of the sides of the pot. It had been well painted with thick black paint then sprayed over with a tough shiny, hard, silver paint over the black, but ONLY on one side of the pot!! I wanted to strip the paint to return it to pure terracotta again & fully preserve the pattern. ................ I read that full strength 🌿🦘EUCALYPTUS OIL🦘🌿 dissolves paint. I found a 50ml bottle in my cupboard & used an old toothbrush to brush in & massage into the paint: small amounts of pure Euc oil. I let it work into the paint, scrubbing it in. Soon the top silver layer dissolved away so I dripped on more oil & used old tooth brush to scrub into the black paint within the intricate etched pattern. Soon the black paint turned to tar like substance as it softened & mixed with Euc oil. I used a small wire brush & a few squirts of WD40 to scrub away the softened tar like thick black paint. WD40 will not work by itself on paint, only use to remove the tar like paint after Euc oil works. It does not take a lot of Euc Oil, use sparingly drop by drop. Clean brushes of build up if needed, with turpentine or WD40 & rub with old rag. Worked well. Used an angle grinder scrub pad on large smooth portion of pot. Wiped it with a good smear of Euc oil & left to soften, then used angle grinder with pad & it came off in one buzz. Cheers.
Power washer
Would it work on brick that has paint on it
I would be afraid of it messing the brick up
does this work with gypsum coated walls?
Im not sure iv never tried it on gypsum
Je ghisai wali tool kitne mai ati hai or khan se milegi
Does this leave swirl marks in the concrete?
It can yes. If you plan to repaint its not a problem.
Thanks for Watching
Is this better then powerwashing?
It was for me because I didnt want to use any chemicals around the plants
Can I use the same technique to remove tough vinyl?
I used a large scrapper and goo gone
But yes I can
Nice!
Like a fool am using a cup brush
And it's really tough 🥵
why not use an ultra cheap knotted wire wheel cup instead ?
I was tough to use the cup wheel. That's the only reason haha
Thanks for Watching!!
What is this tool called?
Diamond cup wheel
Is the disc surface flat?
Pretty much. It's made to work on flat surface
@@b.k.williams tq Bro. I plan to scrap old painting. That kind of disc will be worthy to have👍👍😀
Can this work on brick.
On the face, yes but probably not the cracks. Maybe a wire wheel would do better for the cracks. I'm not sure
@@b.k.williams ok thanks, the reason I asked is some kids from my community, threw paint on a few houses including mine, its just big splashes on my brick here And there. I hope this works.
I did this but I must have been pressing too hard, went too deep.
Id imagine this works for concrete walls?
Yes it does
Can we remove gypsum on the walls with this machine.
I am not sure. I have not tried it but I would say yes!
I use a jack hammer to remove my pavement paint, always works like a charm
4500 PSI Pressure Washer should do the job a lot faster no?
Yes it could. I just didn't have that option at the time
GOTTA be a better way.
You can use chemicals and a powerwasher but because of stuff around the concrete, this was my best option!
Thanks for Watching!
What a dusty mess. Chemical stripper it makes less of a mess.
That's true! Wasn't sure if the chemicals would kill the grass and plants around it. A broom and leaf blower helped with cleanup