Toupret rapid drying filler is a quality interior filler that has exceptional adherence. For new or renovated substrates, either unpainted or painted such as: Gypsum plaster, plaster tiles, plasterboards, old painted surfaces, cement, concrete, cellular concrete, breeze blocks, bricks & stones. Any conventional paint or wall paper can overcoat. Do not overcoat with polyurethane or solvent-based epoxy paints