Skim coat on concrete, indoors or outdoors.

Structure type

Load-bearing or partition walls or floor slabs in cast-in-place or precast concrete.

Detail

Interior or exterior skim coat on cast-in-place or precast concrete.

Application cycle

1. Load-bearing or partition wall (or alternatively floor slabs) in cast-in-place or precast concrete.
2. Skim coat of RALLK Rasante K or alternatively RALLK K OttO.
3. Troweled interior or exterior finish with RALLK Marmo K, or finish with a finishing coat, powder mineral finish, acrylic, siloxane, lime or silicate paste finish, or lime, siloxane, acrylic or silicate paint, as set out in the specifications.

Additional information

1. Check that the concrete is sound and free of dust, salt efflorescence, mold, soot, other organic material, oil, release agent or anything else that could impair the bond of the skim coat. Make sure the concrete is not subject to water seepage or exposed to leaks.
2. If the concrete shows salt efflorescence, wash it with a pressure jet of water (drinking water or slightly acidified water) and let the surface dry before applying the skim coat. If the efflorescence persists, consider using acid cleaners.
3. See the individual product data sheets for application methods and precautions.