Fiberglass Resin Selection Guide

Resin Name Resin Type Characteristics
SPF Polyester
Polyester resin is fire retardant and meets the requirements for Class 1 flame rating of 25 or less per ASTM E-84.
SVF Vinyl Ester
Vinyl ester resin is fire retardant and meets the requirements for Class 1 flame rating of 25 or less per ASTM E-84.
SGF Polyester
Orthophthalic polyester architectural grade resin is fire retardant and meets the requirements for Class 1 flame rating of 25 or less per ASTM E-84.
SFF Polyester
Isophthalic polyester resin food grade is fire retardant and meets the requirements for Class 2 flame rating of 30 or less per ASTM E-84.
SPH
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Phenolic
Phenolic resin is fire retardant and meets the Class 1 flame rating of 25 or less per ASTM E-84. Has flame spread index of 10 and smoke index of 10. Special Order
NFR Various Composites
This designation of non-fire retardant indicates that the composite is non-fire retardant.