Fill & Paint is a general purpose interior / exterior gap filler that remains flexible. Fill & Paint has a smooth finish with low shrinkage and has good adhesion to most common building materials including wood, MDF, particle board, plywood, fibre cement sheet, plasterboard, concrete, masonry including brick and block work, cement render, polystyrene foam, tiles, ceramics, aluminium. Over paintable in 20 mins. Water clean-up. Moisture resistant though protect from moisture when used externally.