Huber AdvanTech subfloor adhesive is a high-performance, gun-applied foam-to-gel polurethane construction adhesive designed to aggressively bond OSB, plywood and AdvanTech subfloor panels to the supporting framing. A moisture-curing polyurethane resin adhesive, it bonds subfloor panels and joist even in wet and frozed weather conditions. It dipenses from the applicator gun as a foam bead of ahdesive that settles into a gel adhesive in a few seconds. The gap-filling properties allow it to bridge minor imperfections or gaps found on irregular application surfaces.