Polycell polyfilla for wood is a tough 2 part wood filler which is suitable for exterior and interior wood the woodfiller tackles all major wood repairs and can be painted stained or varnished in under 1 hour the two component formulation provides strength and durability and is suitable for filling damage caused by decay and wet rot the 2 part filler has a convenient 11 mixing ratio it has an easy to sand finish that can be drilled screwed planed carved or filed it provides the ultimate weatherp