Xtra Performance Polyurethane Adhesive. Gator Block Bond Adhesive is one of the strongest polyurethane adhesives on the market.

Gator Block Bond Adhesive is one of the strongest polyurethane adhesives on the market. It is especially formulated for bonding concrete, natural stones, blocks, bricks and pavers. It is intended to provide a permanent bond to approved materials and can be used on dry or humid surfaces.