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 a UV inhibitor. Colour: Olive Green
An all-purpose series utilizing a fire retardant isophthalic polyester resin system with a UV inhibitor. Colour: 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. Colour: Beige
FABRICATING WITH EXTREN®
JOINING - EXTREN® can be fastened mechanically with screws, bolts or rivets. FIBREBOLT ® fiberglass studs and hex nuts (available from FABCO) can also be used with EXTREN®. EXTREN® can be joined by adhesives. The strongest connections can be made by using a combination of mechanical fasteners with adhesives. Suggested fabrication techniques for EXTREN® are covered in MMFG’s EXTREN® Fabrication and Repair Manual.
EXTREN® shapes and sheet can be sawed, drilled, routed and turned on a lathe or other machine tool. Punching should be limited to thicknesses of 3/16" and under. Carbide or diamond-tipped saw blades and tool bits are recommended for faster speeds and longer tool life. Cut edges should always be sealed. EXTREN® cannot be bent, rolled or pressed, as can steel.