Small fills in chases or joints.

Structure type

Finishing skim coats on hard-to-reach surfaces, small-volume filling of joints and chases, or filling of voids left by building services upgrades or by replacing finishing elements (e.g. window sills, recessed shelves, electrical junction boxes, etc.).

Detail

Filling of chases and/or leveling/smoothing skim coat after replacing the window sill, indoors or outdoors.

Application cycle

1. Interior or exterior plaster.
2. Filling of the chase left by replacing/repositioning the window sill with RALLK Kiudi BuKi, placed at a plastic consistency and finished with a spatula or an upturned trowel.
3. Patching and leveling skim coat over the existing plaster and the filling under the sill (see step 2) with RALLK Kiudi BuKi, to restore a flat surface, with primed glass fiber mesh of more than 150 g/m² embedded in the outer part.
4. 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 masonry is sound and clean, and free of dust, loose parts, demolition debris, soot, mold, salt efflorescence, other organic material, grease or anything else that could impair the bond of the skim coat to the substrate.
2. 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.
3. On cracked plaster, check the cause and stability of the cracks before applying the skim coat. For cracks wider than 2 mm, we recommend filling them first with RALLK Kiudi BuKi, applied with a spatula, 12 - 24 h before the leveling skim coat.
4. See the individual product data sheets for application methods and precautions.