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Structural Shapes & Plate


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EXTREN® is a proprietary combination of fiberglass reinforcements and thermosetting polyester or vinyl ester resin systems. EXTREN® 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 Brochure




EXTREN® is offered in three series designed for different environments and applications:

An all-purpose series utilizing an isophthalic polyester resin system with a UV inhibitor. Color: Olive Green


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An all-purpose series utilizing a fire retardant isophthalic polyester resin system with a UV inhibitor. Color: Slate Gray (plus certain handrail and fixed ladder components in yellow)

A premium series both fire retardant and highly corrosion resistant utilizing a vinyl ester resin system with a UV inhibitor. Color: Beige

All structural shapes are available in a polyester resin (Strongwell PE) and vinyl ester resin (Strongwell VE) which are certified to NSF-61.

Features of EXTREN®

  • Corrosion Resistant
  • Low Conductivity – Thermally and Electrically
  • Non-Magnetic – Electromagnetic Transparency
  • Lightweight
  • High Strength
  • Dimensional Stability
  • Low Maintenance



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Fabricating with EXTREN ®

Typical fabrications include beam, column and plate structures, all-fiberglass buildings, platforms and other custom fabrications involving grating and handrail.