Aromatic polyesters polyols specially designed for boardstock in building insulation, polyisocyanurate foams and in combination with polyether polyols for spraying applications. They are a good compromise among cost and performance above all for fire resistance applications.

Check our catalogue.

Product Name Functionality Viscosity
ASTM D 445
Acid number
mg KOH/g
ASTM D 974
OH number
mg KOH/g 
ASTM E 1899
Glypol 3920
(polyphthlate ester)
2 2200 max 2.5 315 Flexible foam for spraying applications
Glypol 3921
(polyphthlate ester)
2 1000 max 1.5 190 Rigid foams for thermal and sound isolation
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