Patching Exterior Concrete Walls

Using either a screwdriver or hammer or a combination of both chip off any loose concrete paint or old filler.

Patching exterior concrete walls.

10d finishing nails partway into the crack spaced 12 in. Concrete wall crack repair in 8 steps step 1. Use a nail to align injection points. Hammer it gently with the rubber mallet to.

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. Then trowel the concrete into the crack until it is completely filled. How to patch an exterior concrete wall step 1. Brush out the concrete chippings with a wire brush.

Mix the two part epoxy. The only way to repair foundation wall cracks successfully is by the injection process. Things needed screwdriver putty knife wire brush wet dry vacuum spray bottle filled with water hydraulic cement clean mixing container trowel optional. First scrub the crack clean of any loose concrete paint or old filler using 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.