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How to Use Concrete Crack Filler

Here are tips and suggestions on how to Use Concrete Crack Filler. Take the time to read these directions thoroughly to save time, money and effort.

Examine the Crack 

Cracks can take on many shapes and sizes. The first thing to do before beginning a repair is to examine the crack. Be sure that there is no water seeping up through the crack, and no moisture surrounding it. 

Repair a Hairline Crack

It's obviously best to patch a hairline concrete crack when it is first noticed. Patching a hairline crack in concrete can help prevent that crack from expanding into a much larger crack. Concrete sealer can be used to fill a hairline crack.  Before making repairs, to hairline cracks, be sure to wash the floor well, to remove dirt and oil. No concrete filler will adhere well to a dirty floor, so this step is extremely important.

Repair a Larger Crack

A hairline crack that isn't repaired right away often turns into a larger crack when winter weather arrives. Freezing water settles into the crack causing it to expand. Those with slightly cracked concrete sidewalks and driveways sometimes notice the crack expanding in the winter. That's why it's important to take care of hairline cracks as soon as possible.

If a hairline crack in concrete has turned into a large crack, it will need to be cleaned out before the patching and repairing process. Remove any loose concrete and brush out any other bits and pieces with a wire brush.

Cover Your Crack

It will be necessary to expand the crack so it is wider at ground level than on the surface. Use a cold chisel and sledgehammer to properly widen the crack. If the concrete has not cracked all the way to the base, the crack must be at least ½ inch deep for the repair to be effective.

References:

Concrete Crack Repair Info

Crack Repair Products Information