Rustins Acrylic Wood Filler is a fast-drying, ready to use flexible filler that is easy to sand, stain and paint. Suitable for interior and exterior use. Once dry, the filler can be painted, stained or varnished. Try a small inconspicuous area first as the filler may stain on the area filled. Preparation the surface must be clean, dry and free from all traces of oil, grease and dust. Application using a suitable filling knife, work the filler into the wood, allowing up to 2 hours to dry between layers. Clean tools in water. 1 x Rustins Acrylic Wood Filler Natural 250ml