2. Sand when dry
Surface must be clean, dry and free of loose or protruding material-sand surface lightly if necessary.
1. Using the spatula provided, press filler firmly into hole/crack and smooth off. Spakfilla Rapid exhibits virtually no shrinking, so there is no need to overfill.
2. If necessary, once completely set(30 minutes in thin applications), Spakfilla Rapid can be lightly sanded prior to painting with water-based paints. Minimal sanding required for a smooth finish.