HB42 Ultimate Wood Filler is a professional-grade, two-part polyester filler built for serious wood repairs, indoors and out. It's simple to mix and sets hard to a strong, weatherproof finish in just 30 minutes. Once cured, it can be drilled, screwed, carved, sanded or planed, and takes paint or stain well so repairs blend in with the timber around them.
It's a great fix for wet rot damage on furniture, window sills, frames, doors and banisters, as well as grain filling and repairs to shakes, cracks, splits and knot holes up to 50mm deep. Supplied with a separate hardener, it's non-slump, so it stays put on vertical surfaces and corner repairs, and it accepts all known paint systems and varnishes. It can even be used on wooden constructions, including some marine applications.