Toupret REDLITE Filler is supplied ready-to-use. It offers a one coat fill with no need to spot prime. No sanding required. It will not flash or grin or shrink. Suitable for internal use, can be painted over in 30 minutes to 2 hours. Can be used on new or renovated substrates, either unpainted or painted: gypsum plaster, plaster tiles, plasterboards, primed wood, old painted surfaces, cement, concrete, cellular concrete, breeze blocks, bricks and stones.