EXTREN® is a proprietary combination of fiberglass reinforcements and thermosetting polyester or vinyl ester resin systems. It is produced in more than 100 standard shapes and all shapes have a surface veil to protect against glass fibers penetrating the resin surface in service, and to increase corrosion and UV resistance.
EXTREN® is offered in three series designed for different environments and applications.
An all-purpose series utilizing an isophthalic polyester resin system with UV inhibitor.
An all-purpose series utilizing a fire retardant isophthalic polyester resin system with a UV inhibitor.
A premium series both fire retardant and highly corrosion resistant utilizing a vinyl ester resin system with a UV inhibitor.