20 oz. SoudaFoam Doors & Windows is a one-component, self expanding, ready to use polyurethane foam with propellants, which are completely harmless to the ozone layer. SoudaFoam D&W is available for use with a Mega straw applicator, a foamapplicator gun, and our patented Genius Gun Max Applicator. Characteristics:, Permanent color, Paintable, Mildew resistant, Very good adhesion on many materials, Very easy application, Low Expansion, Will not bow or bend window and door frame. Applications: Installing of window and door frames. Filling of cavities. Sealing of openings in roof construction. Creation of a soundproof screen, Mounting and sealing of window and door frames, Connecting of insulating materials and roof construction, Application of a soundproofing layer on motors, Improving thermal isolation in cooling systems Installation of air conditioners.