The 3M™ HoldFast Spray Adhesive is our extremely versatile, fast-tacking industrial grade spray adhesive with a unique wide-web spray pattern well suited for bonding a variety of construction materials. It requires a short dry time yet provides long open time to perfectly position your materials. It is an effective adhesive for waterproofing and protecting from moisture.The 3M HoldFast Spray Adhesive helps to create a quick, permanent bond on many substrates, including polystyrene, drainboard, insulation, foams, and fabrics. It is typically used in construction, specialty vehicle, RV, manufactured housing, and HVAC. It is packaged in a pre pressurized canister for an easy to use, maintenance free delivery system.