GNS is a group of companies in China, largest PU foam manufacturer and PU foam supplier in China and the top 3 in Asia. In addition to PU foam, the company also produces silicone sealant, other sealants and adhesives.

The manual type PU foam is mainly used for filling, sealing and bonding the side seams, expansion joints and frames of building doors and windows. It is a polyurethane elastic sealing foam material cured by moisture. The manual type PU foam requires a special equipped straw to be used. It is a one-component, moisture-curable, multi-purpose polyurethane foam-filled elastic sealing material.

GNS has passed ISO9001 and ISO14001 certification, the manual type PU foam products have been sold to more than 78 countries and regions in the world, meet and through the EU, Australia and other relevant quality certification.