They are used for: Mounting windows and doorframes Heat insulation of water-pipe network, sewerage and central heating Mounting and insulating wall panels, corrugated plates, roof tiles, etc. Soundproofing and sealing of division wall, car and boat cabs Joining prefabricated wood elements in frame constructions Heat insulation of roof constructions Notes: Shake can vigorously, install PU foam gun or spraying straw to the valve according to the instruction. Convert the can, then press trigger, there would be foam flowing out. In a general way, just fill in the hole or gap by 70% when gun-type, and 50% when straw-type. Important tips: Please read the danger mark and instructions before use. Sunrise Cleaning Agent can wash uncured unwanted foam away; And cure foam can only be taken out only by mechanical method Ultraviolet radiation irresistible, surface treatment is recommended.