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Terate® HT 5503

Terate® HT 5503 polyol is an aromatic polyester polyol specifically formulated for hydrocarbon blown PIR laminate systems requiring a higher acid number. Terate® HT 5503 polyols functionality and aromatic content enhance its flammability performance. When burned, polyisocyanurate and polyurethane foams containing Terate® HT 5503 polyol form char with minimal shrinkage and allow for high weight retention.

PROPERTIES RANGE TYPICAL PROPERTIES
Hydroxyl Number, mg KOH/g 225 – 245 235
Viscosity at 25°C, cps 2,000 – 5,000 3,500
Acid Number, mg KOH/g 0.6 – 1.3 1.0
Water Content, % <0.15% 0.08%
Equivalent Weight 239
Functionality 2