TOUPRET® Quick Dry Filler for interior surfaces can be overcoated in 3 hours with any conventional paint or wallpaper. It can be filled to any depth without shrinking and offers exceptional adhesion with excellent shaping qualities. Easy to sand and it won't flash or grin, so there's no need to spot prime. It can be used on new or renovated substrates, either unpainted or painted: gypsum plaster, plasterboard, old painted surfaces, cement, concrete, cellular concrete, breeze blocks, bricks and stone. Do not overcoat with polyurethane or solvent-based epoxy paints.