LWRT Sheets
Lightweight Reinforced Thermoplastic (LWRT) Sheets combine glass fibers and polypropylene fibers in a 50:50 mass ratio, part of the Glass-Mat Reinforced Thermoplastics (GMT) family. This combination leverages glass fiber structural reinforcement with polypropylene’s thermoplastic properties.
Manufacturing involves package opening, carding, web formation, needle punching, and hot pressing. The textile production process creates a unified, non-woven mat structure. Hot pressing at 180°C to 220°C under 1-5 MPa pressure consolidates the material into moldable sheets ranging from 1mm to 10mm thickness.
LWRT sheets deliver lightweight construction with low thermal expansion, high tensile strength, good bending strength, and excellent impact toughness. The fluffy mesh structure provides dimensional stability, noise absorption, and flame retardant performance meeting safety standards. Heat insulation and sound absorption properties complement moisture and chemical resistance. Composed entirely of glass fiber and polypropylene, the sheets contain no benzene or formaldehyde and are fully recyclable.
Primary automotive applications include underbody shielding protection devices, load-bearing plates, roof linings, door trim panels, luggage racks, roof moldings, engine covers, and trunk covers. The combination of mechanical properties, weight savings, and acoustic performance makes LWRT sheets functional for these demanding components.









