WJG-820 Spray Polyurethane Foam Insulation System
WJG-820 spray polyurethane foam insulation is a high-tech, new type of waterproof, heat-insulating material. It is made from isocyanate (commonly known as black material) and polyether polyol (commonly known as white material) as main raw materials. With the help of various additives such as blowing agents, catalysts, flame retardants, and antioxidants, it is uniformly mixed using specialized equipment and then foamed on-site through high-pressure spray application. The result is a rigid, high-molecular polymer foam plastic with heat insulation and waterproof functions.