Polyurethane chemistry offers many benefits over the chemistries traditionally used in the pultrusion process. Not only can polyurethane chemistries be customized on a project-by-project basis to provide greater strength, as well as better working and performance characteristics than polyesters, vinyl esters and epoxies, polyurethane resins are also free of the hazardous styrene and solvent emissions common to polyesters and vinyl esters.

The pultrusion processes used to manufacture these components with polyurethane resin release no volatile organic compounds (VOC’s) as opposed to the unsaturated polyester resins, or vinyl esters, used today for pultruding more traditional fiberglass reinforced polyester (FRP). In fact, the resin is partially bio-based. Bayer MaterialScience can supply resin with up to 20% bio-based content. With this resin, it may be possible to register manufactured components as a BioPreferred product for government purchases.

The energy required to produce the raw material components in G2RP profiles is significantly less than in aluminum, while reducing the associated atmospheric emissions that are part of manufacturing. Resins for the pultruded profiles can be supplied with up to 20% bio-based content.

G2RP is made up of stranded fiberglass and polyurethane resin, which has been documented as using 57% less energy per pound of raw material to produce than aluminum. Lighter weight G2RP profiles require less fuel to transport than aluminum profiles.

No ozone depleting chemicals are used in the production of G2RP profiles.

Significant reductions in energy use and carbon emissions help to reduce dependence on foreign energy, while supporting global warming conservation initiatives.