ALL PURPOSE POWDER FILLER All Purpose Powder Filler for both interior and exterior use, with added PVA for extra strength. For repairs to plaster, brick, stone, wood, can be nailed or screwed when dry. Quick setting, non-shrink. Indoor/outdoor repairs to plaster, plasterboard, brick, render, wood, stone and most other building materials. For exterior use, always overpaint with oil based primer and top coat to protect filler. Heavy-duty tough filler - will accept nails or screws when dry Non Shrink. Overstainable & overpaintable with most solvent based and emulsion paints.