HCGM-A/HCGM-B is a high strength 2-component solvent-free polyurethane adhesive that can be fully cured to form an elastic film with good bonding strength and heat-sealing strength. It can withstand 100℃/30min high temperature boiling in structure of plastic to plastic film. After mixing, it has the advantages of long storage time, easy operation and easy cleaning; it will not affect the release of PE film slipping agent, and thus has excellent smoothness. This very high viscosity adhesive is specially designed for material of helium balloon.