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Help CenterGlass Fiber Reinforced Plastic Rectangular Tube 5mm Thick 6m Corrosion Resistant for Marine
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Welcome to Hengshui Ruibin New Materials LLC – a dedicated manufacturer with over 6 years of experience in producing high-quality fiberglass products. Since our establishment in 2019, we have grown into a trusted supplier for global markets, with an annual export value of US$2.5–5 million. Our factory covering 1,000–3,000 square meters and a skilled team of 101–200 employees ensure that every Glass Fiber Reinforced Plastic Rectangular Tube 5mm Thick 6m Corrosion Resistant for Marine meets rigorous quality standards. Engineered specifically for challenging marine environments, this tube combines exceptional durability with lightweight performance, making it an ideal choice for docks, piers, boat building, and offshore structures. Read on to discover how our product can elevate your next project.
🔹 Product Overview
Our FRP rectangular tube is manufactured using the pultrusion process, ensuring consistent cross-section and superior mechanical properties. The 5mm wall thickness provides excellent strength-to-weight ratio, while the 6-meter standard length minimizes joints and installation time. The corrosion-resistant nature of fiberglass reinforced plastic makes it outperform traditional materials like steel or aluminum in salty, humid environments.
🔹 Key Features & Benefits
- Exceptional Corrosion Resistance: Impervious to seawater, chemicals, and UV radiation – no rust, no rot, no degradation.
- High Strength-to-Weight Ratio: Up to 70% lighter than steel yet comparable in tensile strength, reducing structural load and handling costs.
- Non-Conductive & Non-Magnetic: Safe for electrical installations and sensitive equipment.
- Low Maintenance: No painting, coating, or cathodic protection required; simply rinse with fresh water.
- Long Service Life: Designed to last decades in marine conditions with minimal performance loss.
- Customizable Dimensions: Available in various lengths, thicknesses, colors, and resin systems (polyester, vinyl ester, epoxy) upon request.
- Easy Fabrication: Can be cut, drilled, and bonded using standard tools and adhesives.
🔹 Technical Specifications
| Property | Typical Value | Remarks |
|---|---|---|
| Wall Thickness | 5 mm | Other thicknesses available upon request |
| Standard Length | 6 m | Custom lengths up to 12 m possible |
| Density | 1.8 – 2.0 g/cm³ | Lightweight compared to steel (7.8 g/cm³) |
| Tensile Strength | ≥ 300 MPa | Varies with fiber orientation and resin |
| Flexural Modulus | ≥ 20 GPa | High stiffness for structural applications |
| Service Temperature | -40°C to +120°C | Depends on resin selection |
| Water Absorption | Excellent moisture resistance | |
| Color | Gray (standard), optional colors | Pigments can be added during pultrusion |
🔹 Applications in Marine Industry
- Boat Building: Structural supports, hatches, railings, and interior framing.
- Docks & Piers: Fender piles, walkways, ladders, and grating supports.
- Offshore Platforms: Handrails, cable trays, and equipment enclosures.
- Aquaculture: Cage frames, net supports, and mooring structures.
- Water Treatment: Chemical-resistant piping and racks.
Because FRP is non-metallic, it eliminates galvanic corrosion issues when used with other metals. It also provides excellent thermal insulation, reducing condensation problems in marine climates. The 5mm wall thickness offers a perfect balance between rigidity and weight, making it suitable for both primary and secondary structural members.
🔹 Why Choose Hengshui Ruibin New Materials?
As a manufacturer with a dedicated factory of 1,000–3,000 m² and a team of 101–200 skilled workers, we control every step of production – from raw material sourcing to final quality inspection. Our annual export value of US$2.5–5 million reflects the trust of customers across North America, South America, Europe, Asia, Africa, and Oceania. We ship from Port of Tianjin and Port of Qingdao, ensuring fast and reliable logistics. While we do not hold third-party certifications at this time, our in-house quality control procedures guarantee consistent dimensions and performance. We also offer customized solutions: different resin systems, UV inhibitors, fire retardants, and additional reinforcements can be added per your specifications.
Our products have been used in numerous marine projects, from coastal docks in Southeast Asia to offshore platforms in the Middle East. The feedback we receive consistently highlights the corrosion resistance, longevity, and cost-effectiveness of our FRP tubes compared to traditional materials. We invite you to experience the same quality and reliability.
Ready to enhance your marine project with a durable, lightweight, and corrosion-free solution? Contact us today for a quote or technical consultation. Our sales team is available to discuss your specific requirements and provide samples or drawings. Let Hengshui Ruibin New Materials LLC be your trusted partner in fiberglass innovation.
❓ Frequently Asked Questions
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Q: Is this FRP tube suitable for direct seawater exposure?
A: Yes, the tube is specifically designed for marine environments. The polyester or vinyl ester resin system provides excellent resistance to saltwater, UV rays, and most chemicals. However, for extreme long-term immersion, we recommend selecting a vinyl ester or epoxy resin for enhanced performance. -
Q: Can the tube be cut or drilled on-site?
A: Absolutely. FRP can be cut with standard carbide-tipped saw blades and drilled with high-speed steel bits. No special tools are required. We recommend sealing any cut edges with a compatible resin or coating to maintain corrosion resistance. -
Q: What is the weight per meter of a 5mm thick rectangular tube?
A: The weight depends on the exact cross-section dimensions. As a general rule, a 100mm x 50mm profile with 5mm wall thickness weighs approximately 2.5–3.0 kg per meter, which is about one-quarter the weight of an equivalent steel tube. -
Q: Do you offer custom sizes or colors?
A: Yes, we can manufacture tubes with different thicknesses (from 2mm to 10mm), lengths up to 12 meters, and various cross-section dimensions. Colors can be matched using RAL or Pantone codes. A minimum order quantity may apply for custom runs. -
Q: How does the cost compare to stainless steel or aluminum?
A: The initial material cost of FRP is generally lower than stainless steel and comparable to aluminum. However, when factoring in maintenance, painting, and replacement costs over the product’s lifetime, FRP is often the most economical choice due to its corrosion resistance and long service life. -
Q: Is the tube UV resistant?
A: Standard polyester resin has moderate UV resistance. For applications with prolonged direct sunlight, we can add UV inhibitors or a gel coat to prevent surface fading and degradation. We recommend discussing your specific exposure conditions with our technical team. -
Q: What is the typical lead time for a standard 6m tube order?
A: For standard sizes and colors, lead time is approximately 15–20 working days after order confirmation. Custom products may require 25–35 days depending on complexity. We ship via FOB Tianjin or Qingdao. -
Q: Do you provide any warranty or quality guarantee?
A: Yes, we stand behind the quality of our products. All tubes undergo dimensional and visual inspection before shipment. We offer a standard warranty against manufacturing defects. Please contact our sales team for specific warranty terms based on your application.
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