Mono component PU Foam Sealants are mainly used in structural installation and insulation,it serves as the gap filling,fixation and adhesive bonding,and also,they have good properties of seal,thermal insulation,sound insulation,anti-vibration,waterproof, isolation,etc.and the features of product are quick expansion with high expansion ration, Not liable to contraction distortion,with good dimensional stability. Less tack free time,fine and even texture.