Prior to application of the basecoat uniformly pre moisten concrete masonry surfaces to aid in curing of the plaster.
Concrete over plaster walls.
Plastering a concrete wall takes time.
Use a wire brush to clean stains left by the mold or mortar joints.
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Your walls should be free of paint oil and dust so the plaster can bond properly.
Applying plaster to a concrete wall can change its appearance level it make it more moisture resistant and give you the opportunity to add texture.
Plaster is applied to concrete masonry surfaces in two or three coats consisting of basecoat s and a finish coat.
Caulk cracks and kill any mold on the walls.
You will have to prepare the wall and allow for curing and drying time between applications of plaster.
However avoid saturating the masonry either by excessive spraying or by exposure of uncovered masonry walls or.
While plaster is best applied over wooden strips the material can also be applied directly to plywood sheets or concrete.
Step 2 apply a layer of dash.