Beijing Renabest Trading Co., Ltd. (originally Beijing Polyurethane Foam Sealant Factory) is a manufacture factory which produce specially construction sealant and our company has been engaged in developing, manufacturing and marketing polyurethane foam sealant for many years. Mono polyurethane foam sealant is a kind of protection warn new product. It is mainly used in structural installation and insulation, they serve 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.