Grating

FRP grating is a type of lightweight, open-grid flooring used in factory walkways, refinery platforms, port docks, wastewater treatment plants, and power plants. There are two main types: molded grating, made by compression molding of polyester resin with short fiberglass, and pultruded grating, produced by continuous pultrusion, which has higher unidirectional strength. Both types feature a slip-resistant surface (achieved by adding silica particles or special mold patterns).

Key advantages of FRP grating compared to steel: 70% lighter weight (ease of handling and installation), no corrosion in wet and chemical environments, non-electrical conductivity (safety against electric shock), and fire resistance (using phenolic resin). FRP grating is resistant to sulfuric acid, caustic soda, solvents, and seawater. Alborz Organic Materials Company offers gratings with load-bearing capacity up to 300 kg/m² and 38 mm mesh spacing, using isophthalic, vinyl ester, and phenolic resins.