FRP (Fiber-Reinforced Plastic)-specifically fiberglass-reinforced material-is a novel composite material developed abroad in the early 20th century. It offers numerous advantages, including light weight, high strength, corrosion resistance, thermal insulation, electrical insulation, and sound insulation.
FRP doors and windows are manufactured using medium-alkali fiberglass rovings and fabrics as reinforcement materials and unsaturated resin as the matrix material. These components are combined through a specialized process-incorporating mineral fillers-and then heat-cured and pultruded into hollow profiles with various cross-sectional shapes.
