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GRP Box Section
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GRP Box Section
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GRP Box Section
A GRP (Glass Reinforced Plastic) Box Section, also known as an FRP (Fiberglass Reinforced Plastic) Square or Rectangular Tube, is a hollow structural profile made from a composite of glass fibers and polymer resin. It is manufactured through the pultrusion process, ensuring high strength, durability, and uniform quality.
产品性能介绍
GRP Box Sections are commonly used as load-bearing structures in construction, industrial, marine, and electrical applications where corrosion resistance, lightweight properties, and high mechanical strength are required.
2. Conventional Specifications & Dimensions
GRP Box Sections are available in square and rectangular profiles, with different thicknesses based on load requirements.
Common Dimensions (mm & inches)
| Size (mm) | Wall Thickness (mm) | Size (inches) | Wall Thickness (inches) |
|---|---|---|---|
| 25 x 25 | 3, 4 | 1" x 1" | 0.12", 0.16" |
| 30 x 30 | 4, 5 | 1.18" x 1.18" | 0.16", 0.20" |
| 40 x 40 | 4, 5, 6 | 1.57" x 1.57" | 0.16", 0.20", 0.24" |
| 50 x 50 | 5, 6, 8 | 1.97" x 1.97" | 0.20", 0.24", 0.31" |
| 75 x 75 | 6, 8, 10 | 2.95" x 2.95" | 0.24", 0.31", 0.39" |
| 100 x 100 | 8, 10, 12 | 3.94" x 3.94" | 0.31", 0.39", 0.47" |
| 150 x 150 | 10, 12, 15 | 5.91" x 5.91" | 0.39", 0.47", 0.59" |
📌 Rectangular sections with different height/width ratios are also available upon request.
Standard Lengths
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3m, 6m, 12m (custom lengths available)
材质成分
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玻璃纤维增强材料 – Provides tensile strength and durability.
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Polymer Resin Options:
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聚酯纤维 – Standard, cost-effective.
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乙烯基酯 – Superior corrosion resistance.
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酚醛型 – Fire-resistant, low smoke emission.
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Epoxy – High strength and impact resistance.
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颜色选项
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标准： Gray, Green, Yellow, Red, Black
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Custom colors available based on resin pigmentation.
3. Key Advantages of GRP Box Sections
| 特征 | GRP Box Section | Steel Box Section | Aluminum Box Section |
|---|---|---|---|
| 耐腐蚀性能 | ✅ Excellent (Resists chemicals, moisture, saltwater) | ❌ Prone to rust and corrosion | ⚠️ Corrosion-resistant but may oxidize |
| 重量 | ✅ Lightweight (~75% lighter than steel) | ❌ Heavy | ✅ Lighter than steel but heavier than GRP |
| Strength-to-Weight Ratio | ✅ High | ✅ High | ✅ High |
| Electrical Insulation | ✅ Non-conductive | ❌ Conductive | ❌ Conductive |
| Thermal Conductivity | ✅ Low (Good insulation) | ❌ High (conducts heat) | ⚠️ Medium |
| Maintenance | ✅ Low maintenance | ❌ Requires painting, coating | ✅ Low maintenance |
| Installation | ✅ Easy (can be cut & drilled on-site) | ❌ Requires welding, heavy tools | ✅ Moderate |
| Lifespan | ✅ 20+ years | ❌ Subject to corrosion | ✅ 10–15 years |
📌 Key Takeaways
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GRP Box Sections do not rust or corrode, making them ideal for outdoor and harsh environments.
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Lighter than steel, making handling and installation easier.
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Non-conductive, ideal for electrical safety applications.
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Minimal maintenance required, reducing long-term costs.
4. Applications of GRP Box Sections
GRP Box Sections are used in multiple industries, including:
🏗 Construction & Infrastructure – Roof frames, structural supports, handrails.
⚡ Electrical Industry – Non-conductive framing, transformer enclosures.
🌊 Marine & Offshore – Dock structures, platforms, bridges.
🏭 Chemical Plants & Wastewater Facilities – Corrosion-resistant frameworks.
🚆 运输 – Railway signal poles, lightweight vehicle structures.
🌿 Agriculture & Greenhouses – Corrosion-resistant structures.
5. Installation & Processing
Can GRP Box Sections be cut and drilled?
Yes! GRP Box Sections can be easily cut, drilled, and machined using:
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Circular saws with diamond/tungsten carbide blades
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Drills with HSS (High-Speed Steel) bits
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Angle grinders for smooth finishing
💡 Tip: Always use dust extraction or wear a mask when cutting GRP to avoid inhaling fine dust.
Installation Methods:
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Bolts & Fasteners – Pre-drilled for easy connection.
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Adhesives & Bonding Agents – For seamless joints.
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Brackets & Clamps – Used for structural connections.
6. Fire Resistance of GRP Box Sections
GRP Box Sections can be fire-retardant depending on the resin used:
🔥 Standard Polyester Resin – Basic fire resistance.
🔥 乙烯基树脂 – Moderate fire resistance.
🔥 酚醛树脂 – High fire resistance, low smoke emissions, used in public spaces.
Always check fire safety regulations before selecting a resin type.
7. Cost Considerations
The cost of GRP Box Sections depends on:
💰 Size & thickness
💰 树脂类型 (Standard polyester is cheaper; phenolic is premium)
💰 Quantity ordered (Bulk orders receive better pricing)
💰 定制 (Custom colors, lengths, or fire-retardant versions may add costs)
📌 While the initial cost is higher than steel, GRP requires lower maintenance, making it cost-effective long-term.
8. Lifespan & Maintenance
⏳ Lifespan: 20+ years in normal conditions.
🧼 维护：
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Regular cleaning – Use water and mild detergent.
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Check for physical damage – Especially in high-load applications.
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UV Protection (if needed) – Optional coatings can be applied.
结论
GRP Box Sections are an excellent alternative to steel and aluminum, offering lightweight strength, corrosion resistance, and long-term durability. They are ideal for industrial, marine, construction, and electrical applications.
💡 Need a quotation or technical consultation? Let me know your project requirements! 🚀
GRP Box Section
系列 ：
主要产品 >应用场景
✅ Industrial & Chemical Plants – Structural supports in corrosive environments. ✅ Marine & Offshore – Framing in docks, jetties, and oil platforms. ✅ Electrical Infrastructure – Insulating supports in substations. ✅ Wastewater Treatment Plants – Structural reinforcements in water tanks. ✅ Construction – Roof framing, wall supports, and lightweight structures. ✅ Transport Industry – Rail, automotive, and aerospace applications.
品牌 ：
TF复合
产品名称 ：
GRP Box Section
材料 ：
玻璃纤维
颜色 ：
Yellow,Gray,Other
常问问题
问：
What are the standard sizes available?
答 ：
GRP Box Sections are available in various sizes, with common dimensions including: 📌 Square Sections: 25 x 25 mm, 30 x 30 mm, 40 x 40 mm, 50 x 50 mm, 75 x 75 mm, 100 x 100 mm, 150 x 150 mm 📌 Rectangular Sections: 50 x 25 mm, 100 x 50 mm, 150 x 50 mm, 200 x 100 mm, etc. 📌 Wall Thickness Options: 3 mm to 15 mm 📌 Standard Lengths: 3m, 6m, 12m (Custom lengths available)
问：
What are the main advantages of GRP Box Sections?
答 ：
✅ Corrosion-resistant – No rust, ideal for harsh environments ✅ Lightweight – Up to 75% lighter than steel ✅ High strength-to-weight ratio – Strong but easy to handle ✅ Non-conductive – Safe for electrical applications ✅ Low maintenance – No need for painting or coatings ✅ Long lifespan – 20+ years in most conditions ✅ Easy to cut and install – No special tools required
问：
Can GRP Box Sections be cut and drilled?
答 ：
Yes! GRP can be easily cut, drilled, and machined using: Diamond or tungsten carbide saw blades High-speed steel (HSS) drill bits Angle grinders for finishing 📌 Tip: Wear a mask and use dust extraction to avoid inhaling fiberglass particles.
问：
Are GRP Box Sections fire-resistant?
答 ：
🔥 Standard GRP is fire-resistant to some extent, but enhanced fire-retardant resins can be used for better performance: Polyester Resin – Basic fire resistance Vinyl Ester Resin – Moderate fire resistance Phenolic Resin – High fire resistance, low smoke emission 📌 Always check fire safety regulations before selecting a resin type.
问：
How are GRP Box Sections installed?
答 ：
GRP Box Sections can be installed using: Bolts & fasteners – Pre-drilled for secure connections Brackets & clamps – Common for structural frames Adhesives – For bonding without drilling Fiberglass welding (resin bonding) – Permanent joint solution
问：
What is the lifespan of a GRP Box Section?
答 ：
🛠 20+ years with minimal maintenance. 🚫 No rust, no painting required. 📌 For extreme environments (chemical plants, offshore, etc.), lifespan may vary.
问：
Can GRP Box Sections be painted?
答 ：
Yes! GRP can be painted using UV-resistant coatings for additional protection. However, GRP profiles are available in different colors from the factory, so painting is usually unnecessary.
问：
What industries use GRP Box Sections?
答 ：
🔹 Construction & Infrastructure – Frames, walkways, handrails 🔹 Marine & Offshore – Platforms, docks, ladders 🔹 Electrical Industry – Transformer enclosures, supports 🔹 Chemical Plants & Factories – Corrosion-resistant structures 🔹 Agriculture & Greenhouses – Lightweight support frames
问：
Are GRP Box Sections environmentally friendly?
答 ：
♻️ Yes! GRP is highly durable, reducing waste over time. However, recycling GRP requires specialized facilities.
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