Spare Classic Products: FRP Doors and Windows

Glass fiber-reinforced polyurethane isa top-notch composite. Boasting highstrength, low thermal conductivity andexcellent corrosion resistance, it finds wideuse in construction, power, bridges,petrochemicals, aerospace, wind turbineblades and coastal flood defense. Withgrowing demands for building energyconservation, energy-efficient doors andwindows have become a focus. NanjingSpare New Materials Co. developed glassfiber-polyurethane composite doors andwindows. Now mass-produced in China,they serve as the new generation of high-tech profiles, replacing traditionalmaterials and boosting the comprehensiveperformance of doors and windows.

Fiberglass-reinforced polyurethanecomposite doors and windows are made viapultrusion. Their main frames use specialaerospace-grade composite profiles and arefilled with B1-grade polyurethane foam. Thesedoors and windows have outstanding perks:excellent insulation, high strength, good fireresistance, stable dimensions, low productionenergy use, and diverse looks.The frame material's thermal transmittanceis Uf < 0.68 W/(m2-K), and the whole window canreach 0.8 W/(m2-K). This special material frameoffers more installation choices, fitting mostpassive house certifications even with flushinstallation. It's cost-effective and cuts passivehouse construction costs.