High-Load FRP-Lined Steel Tray for Thailand Outdoor Project

2026-04-22

Project Overview

A major infrastructure project in Thailand required cable trays for outdoor power distribution systems, combining the corrosion resistance of FRP with enhanced load-bearing capacity. The client specified FRP material for its weather resistance but demanded load-bearing performance comparable to steel trays.

（Production Process）

Key Challenges

Enhanced Load Requirement: Need to support 120kg/m (2.5x standard FRP capacity)

Outdoor Durability: Resistance to Thailand’s high humidity and temperature fluctuations

Rapid Turnaround: 16-day delivery window for custom-manufactured trays

Custom Solution: FRP-Lined Steel Composite Tray

Our engineering team developed a hybrid composite design to meet dual performance requirements:

Core Structure: High-grade steel substrate (compliant with GB/T 3274 standards) with 1.5mm minimum thickness for structural rigidity

FRP Lining: 3mm corrosion-resistant FRP coating (unsaturated polyester resin per GB/T 8237) applied to all surfaces

Bonding Technology: Structural epoxy adhesion process ensuring 100% bonding integrity (tested per FHWA HIF-19-030 standards)

Manufacturing Efficiency: Streamlined production workflow combining pultrusion and modular assembly

Project Outcomes

Load Capacity: Achieved 135kg/m load-bearing capacity (12.5% excess over requirement) with flexural strength of 280MPa

Dual Performance: Corrosion resistance of FRP with steel-like stiffness (elastic modulus 200GPa)

Rapid Delivery: Completed production and delivery in 16 days (beating industry average 3-6 week lead time for custom composite trays)

Cost Advantage: 20% lower total cost of ownership compared to stainless steel trays over 10-year lifecycle

Summary of Custom FRP Capabilities

Solution Type	Key Advantages	Industry Applications
Optimized Perforation FRP Trays	High-temperature resistance, corrosion immunity, cost efficiency	Chemical plants, GCC outdoor projects
FRP-Lined Steel Composite Trays	Enhanced load capacity, durability, rapid delivery	Infrastructure, heavy industrial, outdoor power systems

Our ability to engineer tailored FRP solutions—from material selection to structural optimization—enables us to address the most challenging project requirements while maintaining cost-effectiveness and delivery efficiency.