Selleys Spakfilla Rapid is a ready-mixed lightweight filler that is fast drying, virtually non-shrinking, non-cracking & needs only one application. Fill cracks and holes in a single application. Pre-mixed and ready to use. Minimal shrinkage so no need to overfill. Very fast drying allowing sanding and painting in a short time period. Comes complete with a filling spatula for ease of use. Water based, so can be cleaned up with water. Paintable with oil and water based paints.