Pultruded FRP Round & Square Hollow Tubes | Custom Fiberglass Reinforced Plastic Profiles

Our pultruded FRP round and square hollow tubes are high-performance fiberglass reinforced plastic (FRP/GRP) profiles manufactured via continuous pultrusion molding. Designed for superior electrical insulation, mechanical strength and dimensional stability, these custom fiberglass profiles are ideal for electrical insulator components, industrial insulating structures and other demanding applications requiring lightweight, corrosion-resistant and non-conductive materials.

Key Features of Our Pultruded FRP Tubes

• Excellent Electrical Insulation: Made with >80% fiberglass content, these FRP profiles provide reliable dielectric strength, making them ideal for high-voltage electrical insulator applications.

• Superior Mechanical Strength: The pultrusion process ensures uniform fiber alignment, delivering exceptional tensile strength, impact resistance and structural stability in both round and square tube designs.

• Low Water Absorption: With water absorption rates below 0.05%, these fiberglass tubes maintain consistent performance even in humid or wet environments, preventing degradation of insulating properties.

• Customizable Shapes & Sizes: Available in round, square, rectangular and custom profiles, with tailored dimensions, wall thicknesses and colors (standard green/yellow hues, custom colors on request).

• Full Processing & OEM Support: We offer complete secondary processing services including cutting, bending, punching, welding and machining, plus full OEM/ODM custom branding and specification support.

• Certified Quality: Manufactured to meet IEC 61109, GB/T 13096-1, GB/T 775.3 and other international standards, ensuring compliance with global electrical and industrial safety requirements.

• Corrosion & Weather Resistance: The fiberglass reinforced plastic material resists chemicals, UV exposure and environmental corrosion, delivering a long service life with minimal maintenance.

Technical Specifications

Why Choose Our Custom Pultruded FRP Fiberglass Tubes?

Unlike metal, plastic or ceramic alternatives, our pultruded FRP round and square hollow tubes offer a unique combination of benefits for electrical and industrial applications:

• Lightweight & High Strength: FRP is significantly lighter than metal, reducing installation and transportation costs while maintaining exceptional structural rigidity.

• Non-Conductive & Non-Magnetic: Ideal for high-voltage electrical systems, eliminating the risk of electrical conductivity and magnetic interference.

• Low Maintenance & Long Life: Resistant to corrosion, rust, rot and chemical degradation, these fiberglass profiles require no painting or protective coatings, reducing long-term maintenance costs.

• Cost-Effective Custom Solutions: We offer fully customizable dimensions, shapes and processing services to meet your exact project requirements, with OEM support for large-scale orders.

Custom FRP Tube Solutions for Your Project

We specialize in providing custom pultruded FRP round and square hollow tubes tailored to your specific application needs. Whether you need standard-sized fiberglass profiles for electrical insulators or fully custom shapes and processing for specialized industrial projects, our engineering team can design and manufacture a solution that meets your specifications. Contact us today to discuss your requirements, request samples or get a quote on high-quality, certified FRP fiberglass tubes.