One Strike Filler Cartridge fills holes and cracks in one application without shrinking or cracking. It finishes smoothly, needs minimal sanding, and is paint-ready in 30 minutes. This revolutionary ready-mixed lightweight filler is suitable for preparing numerous surfaces prior to painting or wallpapering. It outperforms conventional fillers in most applications and is designed for professional and DIY use. The filler finishes smooth, requiring little or no sanding and is ready to paint or wallpaper in just 30 minutes. It is ideal for filling gaps and holes in brickwork, ceiling, skirting board, render, walls, coving, stone, and wood, both internally and externally.