Zhigu Composite Materials Blog

  Fiberglass grating ​ is manufactured by combining glass-fiber reinforcement with a thermosetting resin, then forming and curing the composite into an open mesh or structural profile. Molded fiberglass grating places wet reinforcement into a mold before compression and heat curing, while pultruded fiberglass grating pulls continuous glass strands through resin and a heated die. I use this distinction as the starting point because manufacturing direction affects stiffness, load paths, span capability, surface texture, and installation requirements. Key Takeaways Molded grating distributes reinforcement in multiple directions and provides balanced panel performance. Pultruded grating aligns continuous fibers longitudinally for higher directional stiffness and longer potential spans. Resin selection influences corrosion resistance, fire behavior, ultraviolet exposure, and service temperature. Manufacturing inspection must identify voids, incomplete wet-out, resin imbalance, dimension...

 For structural applications exposed to moisture, chemicals or other corrosive conditions, buyers should consider FRP H-beams when corrosion resistance, electrical insulation and low structural weight are important, while steel remains a practical choice where high stiffness, familiar connection methods and conventional structural design are the primary requirements. The correct material depends on span, load, deflection limits, temperature, chemical exposure and connection design rather than on material price alone. Zhigu manufactures FRP H-beams using E-glass fiber reinforced with vinyl ester or polyester resin through the pultrusion process. The company positions these structural profiles as alternatives to traditional steel in corrosive environments and highlights corrosion resistance, electrical insulation and fire-retardant properties.   ​ Why Are Buyers Replacing Steel H-Beams With FRP Profiles? The strongest reason is usually not weight reduction by itself. In chemica...

 For industrial platforms, filtration areas and elevated walkways where small objects must not fall through, buyers should select 12×12 mm, 15×15 mm or 19×19 mm FRP small mesh grating according to the size of objects that need to be retained, required load capacity, drainage requirements and panel thickness. A smaller mesh is not automatically a better choice because it reduces open area and can increase material usage; the correct specification depends on the actual safety and process requirements. Zhigu currently offers FRP small mesh grating with 12×12 mm, 15×15 mm and 19×19 mm mesh sizes, with published thickness options of 25, 30 and 38 mm. The product page also lists a standard panel size of 1000×4000 mm, an open-area range of 45–60% and a stated load capacity of up to 4 kN/m².   Why Would an Industrial Buyer Need Small Mesh Instead of Standard FRP Grating? Standard FRP grating ​ is often designed around pedestrian traffic, drainage and general platform access. However,...

 FRP H-beams are structural profiles manufactured from fiberglass reinforcement ​ and polymer resin through pultrusion. They combine a high strength-to-weight ratio with corrosion resistance and electrical insulation, making them useful for structures exposed to moisture, chemicals, salt, and other aggressive environments. For engineers and project buyers, the main advantage of FRP structural profiles is not simply their lower weight. Their corrosion-resistant composite construction can help reduce maintenance requirements in applications where conventional steel structures are repeatedly exposed to harsh conditions.   What Is an FRP H-Beam? An FRP H-beam is a structural profile made from fiberglass reinforced plastic. The pultrusion process continuously pulls reinforcing fibers through a resin system and a heated forming die. This produces a consistent profile with a controlled cross-sectional shape. Zhigu manufactures FRP H-beams using E-glass fiber reinforcement combined w...