G2RP profiles are manufactured by pulling continuous glass fiber rovings through a polyurethane resin bath. Hundreds of these rovings are combined and fed into the "injection box" at the back of the die.

The rovings are pulled into the injection box, where they are saturated with the liquid polyurethane resins. The polyurethane resins are 2-part metered combinations of isocyanates and polyols. The system has been specially designed for use in pultrusion and gives excellent composite properties, including superior elongation to failure, shear strength and impact resistance.

The resin is subsequently cured in a heated die. Heat is applied to speed the curing in this low-pressure process. The finished profile emerges from the die.

As the profile fully cools, a constant tension is applied by "pullers" downstream. A cutting device is then used to cut the profiles to the correct lengths. GEC control technology is used to continually monitor and control the process to tight specifications. Cost Savings are provided through various means: Elimination of mats (woven fabrics composed of glass fibers) that are required to achieve high-level mechanical properties in other pultrusion processes Increased mechanical properties results in lighter and more economical profiles Productivity potential through increased line speeds