GFRP Rebar (Fiberglass Rebar, Style 03)
GFRP Rebar — also known as fiberglass rebar, Glass Fiber Reinforced Polymer rebar, or composite rebar — is a newer reinforcement material made of high-strength glass fibers bonded with resin, valued for corrosion resistance, light weight, high strength, and durability.
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GFRP Rebar — also known as fiberglass rebar, Glass Fiber Reinforced Polymer rebar, or composite rebar — is a newer reinforcement material with many advantages over traditional steel rebar. Made of high-strength glass fibers bonded with resin through a pultrusion process, it is corrosion-resistant, lightweight, high-strength, and durable, suiting a wide range of civil engineering and construction applications.

Why Choose GFRP Rebar?
GFRP Rebar offers several benefits over steel rebar:
Corrosion resistance: immune to rust, chemical attack, and saltwater corrosion — all of which can severely damage concrete structures and raise maintenance costs — GFRP Rebar extends structure service life and lessens environmental impact.
Lightweight: at roughly 25% of steel rebar’s weight, it lowers transportation and installation costs, improves construction efficiency and safety, and reduces dead load while adding design flexibility.
High strength: its tensile strength exceeds steel rebar’s, enhancing structural performance and crack resistance while potentially reducing the amount of reinforcement needed and saving on material costs.
Durability: excellent fatigue resistance, thermal stability, and fire resistance let it withstand harsh conditions and temperature swings, while also resisting electromagnetic interference and avoiding galvanic corrosion.
Where to Use GFRP Rebar?
GFRP Rebar fits applications that call for corrosion resistance, light weight, high strength, and durability, such as:
Marine structures: resistant to saltwater corrosion and marine organisms that deteriorate steel rebar, suited to piers, docks, seawalls, bridges, tunnels, and offshore platforms.
Transportation infrastructure: able to withstand heavy traffic loads and dynamic stresses that fatigue and crack steel rebar, fitting highways, railways, airports, parking garages, and subway stations.
Water treatment facilities: resistant to chemical attack and biological degradation that can compromise water quality and safety, used in water tanks, pipes, sewers, dams, and reservoirs.
Industrial buildings: resistant to fire and high heat that would deform or melt steel rebar, and also resistant to electromagnetic interference and galvanic corrosion with other metals, suited to power plants, factories, warehouses, and laboratories.
How to Contact Us?
If you’re interested in our GFRP Rebar products or have any questions, feel free to reach us at:
Company name: Guangdong Haikuo Composite Materials Co.,Ltd. Phone number: +8618951988522 Email address: [email protected]
We look forward to hearing from you and delivering our best service and quality.
Product Specifications
The table below lists specifications for our GFRP Rebar products:
| Diameter (mm) | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 | 22 | 25 | 28 | 30 | 32 | 34 | 36 |
| Cross section(mm2) | 28 | 50 | 73 | 103 | 134 | 180 | 248 | 278 | 355 | 478 | 590 | 671 | 740 | 867 | 977 |
| Density (g/cm3) | 2.2 | 2.2 | 2.2 | 2.1 | 2.1 | 2.1 | 2.1 | 2.1 | 2.1 | 2.1 | 2.1 | 2.1 | 2.1 | 2.1 | 2.1 |
| Weight (g/m) | 51 | 98 | 150 | 210 | 275 | 388 | 485 | 570 | 700 | 970 | 1195 | 1350 | 1589 | 1788 | 2044 |
| Ultimate Tensile Load (KN) | 36 | 54 | 72 | 99 | 117 | 149 | 189 | 225 | 270 | 342 | 432 | 475 | 504 | 540 | 585 |
| Ultimate Tensile Strength (Mpa) | 1280 | 1080 | 980 | 870 | 764 | 752 | 744 | 716 | 695 | 675 | 702 | 637 | 626 | 595 | 585 |
| Ultimate Shear Strength (Mpa) | >150 | >150 | >150 | >150 | >150 | >150 | >150 | >150 | >150 | >150 | >150 | >150 | >150 | >150 | >150 |
| E-modulus (GPa) | >40 | >40 | >40 | >40 | >40 | >40 | >40 | >40 | >40 | >40 | >40 | >40 | >40 | >40 | >40 |
Note: these specifications are for reference only and may vary with production process and quality control; contact us for more detail or a customized order.
Technical Summary & Engineering Insights
| Performance Factor | Haikuo GFRP Rebar | Steel Rebar | Wood/Timber Support |
|---|---|---|---|
| Corrosion Resistance | Complete immunity | Rusts, causes concrete spalling | Rots |
| Weight | Lightweight | Heavy | Light but weak |
| Durability in Marine/Coastal Structures | Excellent, 50+ year design life | Reduced by chloride attack | Poor |
| Electrical Conductivity | Non-conductive | Conductive | Non-conductive |
| Installation Labor | Lighter, easier handling | Heavier, more labor-intensive | Light but weak |
Targeted Product FAQ
Q1: Where is GFRP rebar most commonly used?
A1: Bridges, seawalls, parking structures, water/wastewater treatment plants, and any concrete structure exposed to deicing salts, seawater, or industrial chemicals where steel corrosion is a known long-term risk.
Q2: How does GFRP rebar’s cost compare over the life of a structure?
A2: Material cost is typically higher upfront than steel, but eliminating corrosion-related repair, re-coating, and premature replacement usually makes the lifecycle cost lower for corrosive-environment projects — we can help you work through the comparison.
Q3: What diameters do you produce?
A3: A range of standard diameters is available, with custom lengths cut to your project’s bar schedule — contact us with your specification.
Q4: Does GFRP rebar require special installation training?
A4: Handling and placement is similar to steel rebar, with the key difference that bent shapes must be pre-formed at the factory rather than field-bent — most contractors adapt quickly with basic guidance.
Q5: Can you ship GFRP rebar in full container loads for large infrastructure projects?
A5: Yes, we regularly supply full 20ft/40ft container orders for infrastructure and civil projects — share your total quantity and delivery country for a shipping quote.
Production Process

Pultrusion Profile Equipment

Fiberglass placed on a shelf

Profile mold debugging

Profile cutting

Profile punching

Profile cutting details control

Profile inspection

Profile packaging









