Properly sealing cracks before applying epoxy floor coating moving cracks are generally more than 1mm wide penetrate the full depth of the concrete and come from excessive stress.
Filling cracks in concrete floor before painting.
Dry the crack thoroughly.
How to fill small cracks in concrete.
Choose your concrete repair product.
Choose your concrete repair product.
Non moving cracks can be from hairline to over 1mm wide don t usually penetrate the full depth of the concrete.
Prepare the cracked area for patching.
The materials could be quick set 2 part epoxy crack fillers designed to be coated over immediately or fast setting polyureas.
Clean the crack of all debris dirt particles of concrete or pebbles.
Chip away 25 inches from each side of the concrete.
Put the concrete patch tube in a caulking.
We have owned our home since it was constructed in 1984.
For cracks that exceed 1 inch in width place your chisel at the edges of the crack and use a hammer to strike the chisel.
Instead use a concrete.
If your cracks are fairly large chisel all the concrete that is loose around the crack.
First use a small hammer and chisel in combination to knock away any.
Put the concrete patch tube in a caulking gun.
Use a vacuum cleaner or soft brush after you ve cleaned out larger.
Step 3 chisel loose concrete for larger cracks.
We were going to paint it with a product advertised for use on garage floors.