GFRP Bars (Fiberglass Rebar, Style 04)

GFRP Bars — also known as fiberglass rebar or FRP rebar — are a glass-fiber composite offering corrosion resistance, light weight, high tensile strength, electromagnetic neutrality, and thermal insulation compared with traditional steel rebar.

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An Introduction to GFRP Bars from Guangdong Haikuo Composite Materials Co.,Ltd.

GFRP Bars — also known as fiberglass rebar, glass fiber reinforced polymer rebar, or FRP rebar — are a composite material of high-strength glass fibers embedded in a thermosetting resin matrix. They offer several advantages over traditional steel rebar, including corrosion resistance, light weight, high tensile strength, electromagnetic neutrality, and thermal insulation, and they see wide use in civil engineering, construction, and infrastructure projects, particularly in harsh environments where corrosion and durability are key concerns.

Gfrp rebar machine

Guangdong Haikuo Composite Materials Co.,Ltd. is a leading manufacturer and supplier of GFRP Bars in China, with more than 10 years of experience producing and exporting high-quality GFRP Bars worldwide. Backed by advanced production equipment, a strict quality control system, a professional technical team, and strong customer service, we can customize GFRP Bars to your specifications. Our GFRP Bars carry ISO 9001, CE, SGS, and other international certifications.

If our GFRP Bars interest you, feel free to contact us anytime — call +8618951988522 or email helena@frphk.co. We’ll respond promptly with our best price and service, and we look forward to building a lasting business relationship with you.

GFRP Bar Product Specifications

The table below lists the main product specifications for our GFRP Bars:

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 are typical reference values; actual figures may vary with the production process and environmental conditions.

GFRP Bar Product Features

Our GFRP Bars offer the following features that set them apart from steel rebar:

Corrosion Resistance: resistant to acid, alkali, salt, water, chlorine, and other corrosive agents, they neither rust, decay, nor deteriorate over time, extending the service life of concrete structures and cutting maintenance costs.

Lightweight: at about one-fourth the weight of steel rebar of the same diameter, they are easy to transport, handle, and install, reducing the dead load of concrete structures and improving seismic performance.

High Tensile Strength: their tensile strength exceeds steel rebar’s at the same diameter, letting them withstand higher loads and stresses without breaking or deforming, and improving crack resistance and load-bearing capacity.

Electromagnetic Neutrality: being non-magnetic and non-conductive, they do not interfere with the electromagnetic signals or fields of communication devices, power lines, or medical equipment, making them suitable for sensitive areas such as airports, hospitals, or subway stations.

Thermal Insulation: with low thermal conductivity and a low thermal expansion coefficient, they resist heat transfer and temperature-driven expansion or contraction, helping prevent thermal cracking and reduce thermal stress in concrete structures.

GFRP Bar Applications

Our GFRP Bars suit applications that call for corrosion resistance, light weight, high strength, electromagnetic neutrality, and thermal insulation, such as:

Bridge decks, piers, abutments, and girders

Tunnels, culverts, pipes, and manholes

Marine structures such as docks, piers, seawalls, and breakwaters

Water treatment plants, sewage plants, and desalination plants

Chemical plants, oil refineries, and gas stations

Power plants, substations, and transmission towers

Airport runways, taxiways, aprons, and hangars

Hospital buildings, MRI rooms, and operating rooms

Subway stations, platforms, and rails

Parking garages, ramps, and floors

Residential and commercial buildings, foundations, walls, and roofs

Conclusion

GFRP Bars are a newer composite material offering multiple advantages over steel rebar: corrosion resistance, light weight, high strength, electromagnetic neutrality, and thermal insulation, making them suitable for a wide range of civil engineering, construction, and infrastructure projects. Guangdong Haikuo Composite Materials Co.,Ltd. is a professional manufacturer and supplier of GFRP Bars in China, offering high quality at a competitive price with excellent service. To learn more or place an order, contact us today — we’re happy to answer your questions.

Technical Summary & Engineering Insights

Executive Summary: Haikuo Gfrp Bars are composite reinforcement rods made of high-strength glass fibers embedded in a thermosetting resin matrix — engineered as a corrosion-resistant, lightweight, high-tensile-strength alternative to traditional steel rebar.

Performance Factor	Haikuo Gfrp Bars	Steel Rebar	Wood/Timber Support
Corrosion Resistance	Complete immunity	Rusts, expands, cracks concrete	Rots
Weight	Lightweight	Heavy	Light but weak
Tensile Strength	High	Good	Low
Electrical/Magnetic Neutrality	Fully non-conductive, non-magnetic	Conductive, magnetic	Non-conductive
Chemical Resistance	Excellent	Poor, corrodes with chemical exposure	Poor

Targeted Product FAQ

Q1: What’s the difference between Gfrp Bars and standard fiberglass rebar?

A1: They’re the same underlying composite material — glass fiber reinforced polymer — the naming simply varies by customer/region; our Gfrp Bars are manufactured to the same quality standard as our other rebar products.

Q2: What resin matrix do you use for these bars?

A2: We manufacture with vinyl ester or polyester resin depending on the environmental exposure your project requires — let us know your application and we’ll recommend the right grade.

Q3: Can Gfrp Bars be used for both vertical and horizontal reinforcement?

A3: Yes, they’re suitable for both, sized and spaced according to your structural engineer’s design — the material performs the same in either orientation.

Q4: How are Gfrp Bars packaged for export?

A4: Bars are bundled and palletized for container shipping, cut to your specified lengths — tell us your destination and quantity for a shipping quote.

Q5: What documentation do you provide with an order?

A5: Certificates confirming our ISO 9001:2015 production standard are available, along with test reports on request — let us know what your project specification requires.