Tetrion All Purpose Powder Filler is the original all purpose filler for inside and outside use. It levels and fills many household materials, including plaster, wood, masonry, concrete and brickwork, giving a tough, smooth and permanent finish. For internal and external use, can be used on plaster, brick, wood, stone, concrete, render and plasterboard. Dry time to sand: 2 hours. Dry time to paint: 24 hours.