High-tech fiberglass pultrusion technology offers an exciting alternative to metal, plastic, or wood frame windows. Fiberglass has all the advantages of competing systems, with none of their disadvantages.The ultimate window-frame material, pultruded fiberglass, differs from common fiberglass used in pools, boats, and storage tanks. Continuous strands of glass are saturated in a thermoset resin, and pass through a heated die. They are pulled through, the die, rather than pushed or extruded, through the die - hence the term `pultrusion.’
Fibertec fabricates these dimensionally stable window lineals into fiberglass window frames. By filling the fiberglass frames with foam insulation and glazing them with high efficiency insulating glass, Fibertec has produced the ultimate high performance windowFibertec's fiberglass window and door manufacturing system meets the needs of designers and builders who wish to go beyond the limitations inherent with metal, plastic or wood frame fenestration. Pultruded fiberglass has proven to be a superior material in five ways: dimensional stability, thermal insulation, durability and aesthetics, and `environmental friendliness’. In the pultrusion process, continuous fibers reinforcing in roving or mat/roving forms are drawn through a specially formulated resin bath to coat each fiber with a thermosetting resin mixture. The coated fibers are assembled by a forming guide and then drawn through a heated die. Cure of the thermosetting resin is activated by heat in the die and catalyst in the resin mix. Unlike aluminum or PVC which are pushed through a die and then worked at the exit end, the pultrusion process pulls the material, hence the name, through the die and the resulting profile is cut to length as it leaves the die. It is then ready for use without further forming or treatment.