Wedge the chisel into the top of the crack in the concrete wall.
Patching exterior concrete walls.
Use a nail to align injection points.
The only way to repair foundation wall cracks successfully is by the injection process.
Concrete wall crack repair in 8 steps step 1.
Then trowel the concrete into the crack until it is completely filled.
Paint the concrete bonding liquid along the length of the crack.
Using either a screwdriver or hammer or a combination of both chip off any loose concrete paint or old filler.
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.
Mix the two part epoxy.
How to patch an exterior concrete wall step 1.
Don t leave a depression along the surface of the patch.
Brush out the concrete chippings with a wire brush.
If you are using concrete to patch the crack apply masonry adhesive or some type of bonding agent to the inner surface of the crack.
Hammer it gently with the rubber mallet to.