Wedge the chisel into the top of the crack in the concrete wall.
Patching exterior concrete walls.
10d finishing nails partway into the crack spaced 12 in.
Paint the concrete bonding liquid along the length of the crack.
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.
Use a nail to align injection points.
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.
First scrub the crack clean of any loose concrete paint or old filler using a wire brush.
How to patch an exterior concrete wall step 1.
The only way to repair foundation wall cracks successfully is by the injection process.
Brush out the concrete chippings with a wire brush.
Don t leave a depression along the surface of the patch.
Hammer it gently with the rubber mallet to.
Mix the two part epoxy.
Things needed screwdriver putty knife wire brush wet dry vacuum spray bottle filled with water hydraulic cement clean mixing container trowel optional.