Ruifiber pitches integrated reinforcement for GRP composites

Shanghai Ruifiber Industry says combining roving, woven fabrics and polyester netting can improve strength, crack resistance and surface finish in glass reinforced plastic parts. The company is targeting manufacturers in marine, transportation, construction and industrial tanks as demand rises for more durable composite materials.

Why it matters: - GRP makers are under pressure to improve strength, weight and surface quality at the same time. - Shanghai Ruifiber Industry says an integrated reinforcement system can help reduce resin use, cut defects and extend service life in demanding applications.

What happened: - Shanghai Ruifiber Industry Co., Ltd. outlined its approach to integrated GRP reinforcement in a release dated Aug. 19, 2026. - The company highlighted a system that combines roving, woven fabrics, polyester netting and composite felts for glass reinforced plastic parts. - Ruifiber said the materials are designed to work together across hand lay-up, pultrusion and filament winding production methods. - The company pointed readers to more information on its website.

The details: - Ruifiber said resin provides shape and environmental resistance, while fiber architecture carries the load in GRP parts. - The company said single-material reinforcement can force tradeoffs in weight, resin consumption or crack resistance. - Ruifiber described its approach as “synergistic design,” using different reinforcement formats to address interlaminar shear and surface micro-cracking. - The company said it operates a production base in Fengxian that spans more than 20,000 square meters. - Ruifiber said woven roving provides high tensile strength and stiffness for structural layers in boat hulls and industrial piping. - The company said woven roving supports rapid thickness build-up while maintaining a high glass-to-resin ratio. - Ruifiber said polyester netting, also called laid scrim, adds interlaminar shear toughness and helps prevent peeling under cyclic loading. - The company said the thin mesh also helps keep fiber patterns from showing through the gel coat. - Ruifiber said composite felts improve resin flow during infusion or hand lay-up and help prevent air pockets or dry spots.

Between the lines: - The core pitch is not just about selling materials. It is about selling a matched reinforcement system that reduces compatibility problems inside composite layers. - Ruifiber is positioning itself as a solution provider rather than a commodity supplier. - The company said using one source for the full reinforcement stack can improve chemical compatibility of sizing and binders, which may reduce delamination and poor resin wet-out. - The release also signals where composite demand is moving: toward lighter, tougher and more visually uniform parts for marine, transportation, industrial and construction uses.

What's next: - Ruifiber said demand for durable composite materials is growing in Europe, North America and the Middle East. - The company is aiming to help customers optimize GRP products for performance and longevity through its roving, woven fabrics and polyester netting portfolio. - Manufacturers using industrial tanks, pipes, boat hulls and GRP panels are the likely end users for the integrated approach.

The bottom line: - Ruifiber is betting that GRP makers want fewer material mismatches and better finished parts, and that a bundled reinforcement offer can deliver both.