Everbuild Lumberjack 5 Minute Polyurethane Wood Adhesive Liquid is possibly the one wood adhesive you have always wished for. It’s super strong, suitable for indoor or outdoor use. It is weatherproof. It sets hard in just 5 minutes. It foams slightly on setting so does have some small gap filling properties. Better still it will stick a lot of things to a lot of other things. Like all polyurethane adhesives Everbuild Lumberjack 30 Minute is moisture activated, so works best on wood and common building materials such as masonry, concrete etc. It will also bond Formica, polystyrene, PU foam metal and glass wool and various plastics (including PVC) to porous surfaces. A word of warning: wear disposable gloves when using polyurethane adhesive, if you get it on your hands, no amount of washing or scrubbing will remove it; you will have to wait until it wears off. Conforms to EN 204. D4 Strength.