Finish coat on traditional plaster.

Structure type

External walls, partitions or floor slabs plastered with traditional plaster based on hydraulic binders (lime and cement, hydraulic lime, natural hydraulic lime).

Detail

Interior or exterior marmorino-type trowelled mineral finish on traditional plaster based on hydraulic binders.

Application cycle

1. Interior or exterior plaster.
2. Brick wall (or alternatively concrete, concrete blocks, aerated concrete blocks, wood-cement permanent formwork, etc.).
3. Existing hydraulic binder plaster (lime-cement, hydraulic lime, natural hydraulic lime).
4. Skim coat of RALLK Rasante K or alternatively RALLK K OttO.
5. Troweled interior or exterior finish with RALLK Marmo K, applied with a steel float and polished with a flexible steel spatula until the surface is even, smooth and silky, or has another desired look (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 existing plaster is cohesive and well bonded to the wall, and free of dust, salt efflorescence, mold, soot, other organic material, oil, grease or anything else that could impair the bond between the skim coat and the plaster.
2. On cracked existing plaster, check the cause and stability of the cracks and embed a primed glass fiber mesh of more than 150 g/m² in the skim coat (see step 4).
3. For cracks wider than 2 mm, once they have been confirmed as stable and NOT structural, we recommend filling them first with RALLK Marmo K, applied with a spatula, 12 - 24 h before the skim coat.
4. RALLK Marmo K is compatible with any acrylic, acrylic-siloxane or siloxane protective, consolidating and/or water-repellent treatment recommended for the exposure or use of the treated surfaces.
5. See the individual product data sheets for application methods and precautions.