• To get the best results make sure surfaces are clean, dry and free from any loose or powdery material. Gloss surfaces should be rubbed down prior to filling. Prime untreated wood. • Dries in 30 to 60 minutes depending on temperature,humidity and depth of area filled. • Apply with a clean flexible filling knife direct from the tub.Once the filler is completely dry it can be rubbed down with fine glasspaper to give a smooth finish suitable for painting. • After use wash tools in warm water immediately after use. • Excess product can be left to fully cure and disposed of in a bin. Polycell Polyfilla Fine Surface Filler is a ready mixed filler for filling minor imperfections like nicks, holes, dents and open woodgrain.