National Guard 633 Foam Lock Foam and Fabric Spray AdhesiveSpecially formulated for bonding flexible urethane or latex foams to themselves or most other materials such as wood, metal, or Plastics and Fiberglass. Produces bonds with foam-tearing strength. The fast tack speeds up assembly time. The glue lines on bonded cushions are soft and undetectable. Bonds are maintained even after extended exposure to heat during shipping and direct sunlight. It offers quick tack and high coverage with low soak-in. Coverage is 36 square ft 18 sq ft two sides.