Stepanpol PS-3152 Diethylene glycol-phthalic anhydride-based polyester polyol Stepan PU - Polyols >> Polyester ADHESIVE SEALANT >> Foam These polyester polyols are the primary raw material components used to formulate a variety of polyurethanes. Based on unique ortho-ester linkages, they have proven their ability to enhance performance and reduce your formulation costs. Tests have shown that they: Improve hydrolytic stability Improve select physical properties Promote adhesion to metal substrates STEPANPOL PS-3152 is a diethylene glycol-phthalic anhydride-based polyester polyol. Rigid isocyanurate boardstock; extender for polyurethane foams, including pour density pour and spray, high-density, and packaging. Low viscosity for ease of blending. High aromatic content. Diethylene glycol-phthalic anhydride-based polyester polyol. Used in adhesives and sealants, and as an extender for polyurethane foams. Improves hydrolytic stability and select physical properties. Promotes adhesion to metal substrates. Possesses low viscosity and high aromatic content.