Aluminum Foil Tape

This is a roll of heavy-duty aluminum foil sealing tape, often reinforced for durability.Versatile Sealing: It is used for joining and sealing foil-faced insulation boards, reflective radiant barriers, and HVAC ductwork.Waterproof & Durable: Many versions feature a butyl rubber adhesive backing, making them ideal for permanent waterproof repairs on roofs, pipes, and cracks.