Fiberglass cable trays are available in a full range of specifications

High-quality fiberglass cable trays (FRP/GRP) are durable, corrosion-resistant, non-conductive, and engineered for harsh industrial environments, with specifications tailored to load, resin type, and environmental conditions.

Material and Construction

Fiberglass cable trays are made from Fiber Reinforced Polymer (FRP) or Glass-Reinforced Polymer (GRP) using pultrusion technology, which ensures high strength-to-weight ratio, chemical resistance, and long service life. They are non-conductive, non-magnetic, and corrosion-resistant, making them ideal for chemical plants, offshore platforms, wastewater treatment, and industrial facilities.

FR

P trays are lighter than steel—typically 1/3 the weight—while maintaining comparable or superior strength. Resin TypesHigh-quality trays are manufactured using polyester or vinylester resins. Vinylester resins offer superior chemical and UV resistance, while polyester resins are cost-effective for less aggressive environments.

A surface veil is applied during pultrusion to provide a resin-rich surface for enhanced corrosion resistance and UV protection. Load Capacity and Structural ConsiderationsFRP cable trays are designed to support static and concentrated loads. Typical specifications include: Working load capacity: Determined by support span and tray type, with a minimum safety factor of 1.

5. Support span: Commonly 2 meters, with load ratings adjusted for concentrated loads at mid-span. Tray types: Ladder trays for power cables, trough/channel trays for control and communication cables, and solid-bottom trays for sensitive instrumentation.

Temperature considerations: Continuous exposure to high temperatures reduces strength; working loads must be adjusted accordingly.

Environmental and Safety Features

Fiberglass trays are engineered for corrosive, marine, and chemical environments. Key features include: Non-conductive: Reduces electrical shock hazards. Low thermal conductivity: Acts as an insulator.

Flame resistance: Meets ASTM E-84 Class 1 and ASTM D-635 self-extinguishing standards.

U

V and chemical resistance: Ensures longevity in outdoor and aggressive chemical environments.

Installation and Maintenance

Lightweight design simplifies installation and reduces lifting hazards. Pultruded trays can be cut, drilled, or routed with care; carbide-tipped tools are recommended, and lubricants should be avoided to prevent chipping. Modular design allows easy addition or removal of cables and supports, reducing maintenance costs.

Summary

When specifying high-quality fiberglass cable trays, consider: Material: FRP/GRP with pultruded profiles. Resin type: Polyester or vinylester based on chemical and UV exposure. Tray type: Ladder, trough, or solid-bottom depending on cable type.

Load capacity: Support span, static and concentrated loads, safety factor ≥1. 5. Environmental suitability: Corrosion, UV, chemical, and temperature resistance.

Safety standards: Non-conductive, flame-retardant, and compliant with ASTM standards. Installation: Lightweight, modular, and easy to modify with proper tools.

High-quality FR

P cable trays provide long-term durability, reduced maintenance, and enhanced safety in demanding industrial applications.