Poly-G 20-112 Polyol Arch Chemicals Crosslinking / Coupling / Curing Agents >> Diol / Triol PU - Prepolymers ADHESIVE >> Solvent based SEALANT Poly-G® 20-112 polyols offer high molecular weights and excellent resilience, difficult to obtain with conventional, all-propylene oxide polyols. High quality and reproducibility. Polyols are used in high-solid, solvent-based and water-dispersible urethane adhesives. And, most Poly-G® diols meet Title 21 Code of Federal Regulations for use in food packaging. Arch's 20 series diols, for most solvent- and sold-based adhesives, range in molecular weight from 425 to 4,000. The 55 series of Poly-G VHP® diols are favored due to their water compatibility and their ability to help reduce VOCs (volatile organic compounds). Diol. Can be used in high-solid, solvent-based and water-dispersible urethane adhesives and in food packaging. Offers water compatibility, ability to help reduce VOCs, high molecular weights and excellent resilience (difficult to obtain with conventional, all-propylene oxide polyols). High quality and reproducibility.