Patching Exterior Concrete Walls

Things needed screwdriver putty knife wire brush wet dry vacuum spray bottle filled with water hydraulic cement clean mixing container trowel optional.

Patching exterior concrete walls.

Don t leave a depression along the surface of the patch. 10d finishing nails partway into the crack spaced 12 in. Paint the concrete bonding liquid along the length of the crack. Wedge the chisel into the top of the crack in the concrete wall.

First scrub the crack clean of any loose concrete paint or old filler using a wire brush. Concrete wall crack repair in 8 steps step 1. Using either a screwdriver or hammer or a combination of both chip off any loose concrete paint or old filler. How to patch an exterior concrete wall step 1.

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. 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. Mix the two part epoxy.

Brush out the concrete chippings with a wire brush.