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About to epoxy my garage
- Thread starter Tmmoll
- Start date
LegacyIndustrial
ALLIANCE MEMBER
What am I suppost to do about the hairline cracks in the concrete? Do I need to chisel them out and put some new concrete in there?
We have a product specific to that task:
http://legacyindustrial.net/cart/hd821-crack-sealant-gel-style-p-206.html
However, if you are in a rush you can use "bondo". Find this at Walmart or any auto parts store.
Grind smooth after it cures.
I don't think you need to chisel them out unless you are using a masonary product to fill the cracks.
Bondo makes an "all purpose" putty resin that can be used with masonary products. If you can find an epoxy crack repair product, that would work well also.
When you fill the crack, you'll want to force it in as much as possible. Concrete doesn't break smoothly so you're going to have all sorts of spaces in the crack that will mechanically hold the bondo in place.
Bondo makes an "all purpose" putty resin that can be used with masonary products. If you can find an epoxy crack repair product, that would work well also.
When you fill the crack, you'll want to force it in as much as possible. Concrete doesn't break smoothly so you're going to have all sorts of spaces in the crack that will mechanically hold the bondo in place.
Baada
Well-known member
I just filled lots of small cracks in my basement floor in anticipation of aplying Epoxy-Coat. I spoke with Epoxy-Coat and they recommended an acrylic caulk for the cracks. I used an acrylic concrete crack filler (Quickrete brand even though it wasn't my first choice). It didn't require mixing and came in a big squeze bottle which made it easy to apply. I forced it in with a plastic putty knife until it was level and then I put a small little bead along the crack to account for the shrinkage during drying. It's currently curing for a 24-48 hours but it appears to be working properly. After it dries I will grind it flat. For some larger holes/divots(1.5" or more wider from anchors pulling out) I used Bondo...which I used because it cures very fast and I think its a bit harder so it should stand up a better over the larger area.
LW CONCRETE
Active member
Just use a resin based crack repair kit, you can find them in most reputable specialty store etc or on the net.
We grind off cracks after repairing them for the smoothest finish.
Good luck
We grind off cracks after repairing them for the smoothest finish.
Good luck