Specifications of Anti-corrosion Fiberglass Cable Trays

Fiberglass cable trays (FRP/GRP) are corrosion-resistant, non-conductive, lightweight, and strong alternatives to steel trays, suitable for harsh industrial environments.Material and Construction

Fiberglass cable trays are made from fiber-reinforced plastics (FRP), typically using polyester or vinyl ester resin systems combined with high-quality glass fibers . Alkali-free glass fibers are often used to enhance tensile strength, chemical stability, and long-term durability in aggressive environments . The trays are manufactured using pultrusion or molding processes, ensuring uniform thickness, consistent strength, and no weak points from welding seams . A resin-rich surface veil is applied to provide superior corrosion resistance and UV protection .

Mechanical Properties

• Strength-to-weight ratio: Fiberglass trays are lighter than steel or aluminum but can match or exceed their load capacity .
• Weight: Typically about 1/3 of equivalent steel trays, reducing installation and transportation challenges .
• Non-conductive and non-magnetic, providing electrical safety and eliminating interference with sensitive instrumentation .
• Impact resistance: FRP trays resist deformation under mechanical stress and harsh environmental conditions .

Corrosion and Environmental Resistance

• Corrosion-resistant: Fiberglass does not rust, oxidize, or suffer galvanic corrosion, making it ideal for chemical plants, offshore platforms, refineries, and water treatment facilities .
• UV and moisture protection: Surface treatments prevent degradation from sunlight and water exposure .
• Chemical resistance: Resistant to acids, alkalis, and other industrial chemicals .

Fire and Safety Ratings

• Manufactured to meet ASTM E-84 Class 1 Flame Rating and ASTM D-635 self-extinguishing requirements .
• Low smoke emission and fire-retardant resin systems enhance safety in enclosed spaces .

Types and Applications

• Ladder type: Two side rails with transverse rungs, allowing ventilation and heat dissipation; suitable for power cables and large-diameter control cables .
• Trough/channel type: Bottom plate with side rails for better protection; ideal for control, communication, and instrumentation cables .
• Custom shapes: Pultrusion and molding allow bends, tees, reducers, and covers for complex installations .

Advantages

• Long service life with minimal maintenance.
• Lightweight and easy to install, reducing labor and lifting hazards.
• Electrical safety due to non-conductivity.
• Durable in harsh environments, lowering lifecycle costs compared to metal trays . Fiberglass cable trays are particularly recommended for environments with high humidity, chemical exposure, or strict fire-safety requirements, offering a reliable and cost-effective solution for industrial cable management .