New homes cracks that occur in the first few months or years.
Repairing large cracks in concrete garage floor.
With a cold chisel and large hammer undercut the edges of the crack.
For bigger cracks you can use either an epoxy kit or a polymerized concrete mixture.
One of the best garage floor crack repair epoxy kits is rust oleum s epoxyshield concrete patch repair.
Sweep away any loose debris then vacuum the crack.
Chip out the cracked portion with a maul and cold chisel.
Epoxyshield has a good reputation and is easy to use.
If grease oil or dirt remains in or near the crack clean it thoroughly.
Wear an n 95 respirator and turn on a fan to blow the concrete dust out of the garage.
If your concrete is the same height on both sides of the crack you can fix it yourself.
With a wire brush clean the crack.
Epoxy is a common way to fill in larger cracks and so is a polymerized concrete mix.
This is a two part kit consisting of epoxy and sand.
The polymer acts as a binder and helps adhere the filler to the rest of the original concrete on your floor.