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Terate® HT 5170

Terate® HT 5170 is a medium colored, aromatic polyester polyol with inherent functionality and fire performance advantages over polyether polyols. This product is designed to retain the advantages of Terate® 4020 and 2031 while offering higher hydroxyl value and functionality to allow for further substitution of polyether polyols in traditional polyurethane systems. Terate® HT 5170 also offers improved substrate adhesion, flowability and processing latitude. Polyurethane (PUR) spray formulations using Terate® HT 5170 typically produce foams that form char with minimal shrinkage and high weight retention in flammability testing while maintaining lighter in appearance foam color.

Hydroxyl Number, mg KOH/g 345 - 365 355
Viscosity at 25°C, cps 8,000 - 12,500 10,250
Acid Number, mg KOH/g < 2 1
Water Content, % 0.15% 0.05%
Equivalent Weight 158
Functionality 2.5