TedBear
Member
Hey guys,
I've got a couple of questions regarding new epoxy over old.
My barn is about 10 years old and previous owner epoxied when it was new. However, he ran a painting business in there and spilled some paint, stain, resin, etc. around. Per instructions from the local Sherwin Williams guru, I rented a floor sander from Menard's yesterday and 36 gritted the heck out of it, but it wouldn't touch the hardened paint spots and spills. So, I ended up having to take my Makita grinder to it which left some dime-size spots where concrete is exposed and also a couple of 6 inch diameter spots of exposed concrete where some buckets or something were sitting.
My question is do I need to worry about the new coat of epoxy adhering to those little spots, or do I need to etch with acid? I'm assuming the acid would eat my original coat of epoxy that's already down? It's going to be hard to etch all those little dime size spots. I'm going with the same gray color, but adding flakes, so I'm hoping to one-coat it, clear it, and forget it.
Also, do I need to take a belt sander on my hands and knees and go over those spots where the Makita gouged the paint to make it smooth or will the new coat of epoxy "hide the sin" so to speak? Obviously when you do bodywork on a car, you CAN'T leave any scratches like that or they show when you're done. I didn't know how forgiving the epoxy is when it comes to hiding those scratches. Is it thick enough to fill those in and leave a smooth surface?
Also, in my foot traffic areas I used those peel-and-stick tiles. Can you go over those with the same clear coat you use on the epoxy? I used solid black and white and I'd love to clear coat those and throw some flakes down to help hide dirt, especially on the white ones.
Thanks,
Ted
I've got a couple of questions regarding new epoxy over old.
My barn is about 10 years old and previous owner epoxied when it was new. However, he ran a painting business in there and spilled some paint, stain, resin, etc. around. Per instructions from the local Sherwin Williams guru, I rented a floor sander from Menard's yesterday and 36 gritted the heck out of it, but it wouldn't touch the hardened paint spots and spills. So, I ended up having to take my Makita grinder to it which left some dime-size spots where concrete is exposed and also a couple of 6 inch diameter spots of exposed concrete where some buckets or something were sitting.
My question is do I need to worry about the new coat of epoxy adhering to those little spots, or do I need to etch with acid? I'm assuming the acid would eat my original coat of epoxy that's already down? It's going to be hard to etch all those little dime size spots. I'm going with the same gray color, but adding flakes, so I'm hoping to one-coat it, clear it, and forget it.
Also, do I need to take a belt sander on my hands and knees and go over those spots where the Makita gouged the paint to make it smooth or will the new coat of epoxy "hide the sin" so to speak? Obviously when you do bodywork on a car, you CAN'T leave any scratches like that or they show when you're done. I didn't know how forgiving the epoxy is when it comes to hiding those scratches. Is it thick enough to fill those in and leave a smooth surface?
Also, in my foot traffic areas I used those peel-and-stick tiles. Can you go over those with the same clear coat you use on the epoxy? I used solid black and white and I'd love to clear coat those and throw some flakes down to help hide dirt, especially on the white ones.
Thanks,
Ted