Substrate:
The substrate must be clean, stable, and dust-free; major defects should be repaired. Substrates can include plasterboard, concrete, aerated concrete, or masonry. Irregularities/cavities larger than 5 mm should be filled with gypsum filler/plaster, e.g., Knauf Rotband.
Application:
Used as a machine filler but can also be applied by hand | Sand with fine-grit sandpaper, grit size 180 or finer | Remove dust from the surface before painting or wallpapering | Follow the supplier's instructions regarding the material used as a top coat | Avoid sanding between layers.