In this guide, we'll compare composite vs galvanized cable trays, covering everything from material properties, corrosion resistance, fire performance, installation, cost, and real-world applications. By the end of this article, you'll understand which type of tray aligns with your facility's. What Are FRP and GI Cable Trays? FRP stands for Fibre Reinforced Plastic — sometimes also called GRP (Glass Reinforced Plastic). FRP cable trays are manufactured by embedding high-strength glass fibres into a polymer resin matrix — typically polyester, vinyl ester, or epoxy — through a process. us-trations without notice. All illustrations, descriptions and technical information included in this document are provided as indications and can cable trays are equivalent. The mechanical and electrical characteristics, tests, certifications, overall quality management, recommendations mentioned. This article sets out a direct, data-backed comparison of FRP and GRP cable trays against hot-dip galvanised steel, drawing on independent research and published lifecycle cost modelling, to help engineers and procurement teams make a more informed specification decision. They are lightweight, corrosion-resistant, and non-conductive, making them ideal for industries exposed to moisture, chemicals, and outdoor environments. Core Features: (Learn more about FRP Cable Trays) What Are GI Cable. Cable tray materials in production and application are composite epoxy resin, fiberglass and steel hot galvanized series. Cable tray with those materials have their own characteristics, details are as follows.