Geocel Joiners Mate Liquid Wood Adhesive is a water-resistant polyurethane adhesive. It's a moisture-curing liquid, which expands slightly to increase bite strength, and can be used to bond wood, metal, concrete and various plastics. This adhesive offers a 5-minute grab, exceptionally high bond strength, and is resistant to water, seawater, and most chemicals. It is also suitable for bonding metal, concrete, polystyrene and PU foam and stone to porous substrates.