... Time (Hour)1~1.5(+25°C)Yeild (L) (900g/750ml)25~30Specific Gravity (Kg/M3)12~18PRODUCT DESCRIPTIONGNS General Purpose PU Foam ... Filling and sealing of gaps, joint, openings and cavities.• Connecting of insulation materials and roof construction.• Bonding and mounting.• Insulating ... a wide variety of surfaces such as UPVC, masonry, brick, block work, glass, steel, aluminum, timber and other substrates ( ...