How To Fix Concrete Wall Hole

The injection process fills the crack from top to bottom from inside to outside.

How to fix concrete wall hole.

Clean the hole and surrounding area with a wire brush. Use a hammer and chisel to remove loose concrete from the hole. If you have a wet dry vacuum this is a great place to use it. Wet down the holes with water for best patch adhesion.

The only way to repair foundation wall cracks successfully is by the injection process. You want the surface of the inside of the hole to. Vacuum any remaining dust or debris out of the hole. Using a cold chisel and a 3 pound sledgehammer undercut the hole by making the pop out wider at the bottom than at the top.

Clean the hole with a stiff fiber or wire brush. I used a soaked sponge to wet the bricks and mortar making it easier for the cement to get a good bond. Instead clean it out and choose an. To permanently patch the crack we used an epoxy injection system from polygem called the liquid concrete repair kit 60.

Mix a small portion. Dampen the hole and surrounding area with water using a spray bottle. Just before filling each hole with the expanding concrete repair product use an old spray bottle and spritz the hole with a spray of clean water. You can do this by holding the.

It provides much better adhesion and curing of the patch. Always wear gloves when handling cement. Smooth the edges of the patch around the hole. This is important as most concrete products shrink as they cure and you want to prevent that as much as possible.

If possible make the bottom part of the hole slightly wider than the top part. Injecting a typical wall crack with an epoxy or urethane resin is done under pressure pushing the material from the inside all the way to the outside. Apply the sticky side of the wall hole patch around the edges of the hole leaving at least a on each side of the hole. If the hole is already greater than 1 in 2 5 cm deep don t try to make it deeper.

Use an epoxy injection system for basement wall crack repair we repaired a foundation wall which had an 8 ft long crack that leaked water into the basement during periods of heavy rainfall. Don t skimp on cost.