Ronseal 5 Minute Multipurpose Smooth Finish Filler fills cracks and holes up to 70mm. It won't sag, so it's great for fixing holes in ceilings. With a super-fast drying formula, it will be ready to paint over in 15 minutes, making it perfect for big and last-minute repairs. Suitable for plaster, stone, concrete and wood. As it's lightweight, it's not suitable to be drilled or nailed into.