Corrosion-resistant reinforcement
A non-metallic rebar option for concrete exposed to moisture, salts, chemicals and coastal conditions.
Captrad Composites
GRP Rebar
GRP Product
GRP Rebar for demanding projects
Lightweight, corrosion-resistant glass-fibre-reinforced polymer rebar for durable concrete reinforcement projects.
Captrad combines practical product knowledge, stocked GRP materials and bespoke manufacturing capability to help customers specify a solution that is reliable, durable and appropriate for the application.
- Corrosion-resistant composite performance
- Lightweight and practical to install
- Support for standard or bespoke requirements
- UK-wide delivery from Captrad
The established GRP rebar range
GRP rebar for durable concrete reinforcement
The original Captrad GRP Rebar information and imagery have been carried into this page, showing the product and its construction and infrastructure applications.
Why choose Captrad
Practical benefits of GRP Rebar
Built around project requirements, working environments and long-term performance.
High strength-to-weight ratio
Glass-fibre reinforcement provides practical handling while supporting robust concrete reinforcement designs.
Electrically non-conductive
GRP rebar can be considered for projects where electrical isolation or low electromagnetic interference is important.
Long-term durability
It avoids the rusting associated with steel reinforcement and can reduce maintenance demands in the right application.
Where it works
Industries that use GRP Rebar
Captrad works with customers who need reliable, practical composite solutions for challenging projects. We’ll help assess suitability for your environment and performance requirements.
Discuss your applicationBridges & civil engineering
Concrete reinforcement for bridges, tunnels, highways and wider civil works.
Marine & coastal structures
A practical reinforcement option for piers, seawalls and other saltwater-exposed concrete.
Construction
Reinforcement for concrete beams, columns, slabs and other structural elements.
Energy infrastructure
Suitable for specified wind-turbine, utility and specialist infrastructure projects.
Concrete reinforcement
GRP rebar: a lightweight alternative to steel reinforcement
GRP rebar, also known as glass-fibre-reinforced polymer (GFRP) rebar, is made from high-strength glass fibres in a polymer matrix. It offers a lightweight and durable alternative to traditional steel reinforcement bars, with strong resistance to corrosion, rusting and chemical damage.
The established Captrad range is intended for construction and infrastructure projects where reinforced concrete must perform over the long term in demanding environments. Product selection should always consider the structural design, concrete specification, loading, exposure conditions and applicable design standards.
Typical GRP rebar applications
- Concrete beams, columns, slabs and structural elements
- Bridges, tunnels, highways, rail and civil-engineering works
- Seawalls, piers, offshore structures and coastal construction
- Projects where a non-magnetic, electrically non-conductive reinforcement material is required
Suitable applications
GRP Rebar can support commercial, industrial and infrastructure projects where safety, durability and long-term performance matter. Our team can help consider environment, dimensions, quantities, finishes and installation requirements.
- Construction and civil engineering
- Utilities, water and wastewater
- Rail, marine and offshore
- Industrial processing facilities
- Commercial access and safety projects
Product advice & quotations
Share your requirements with Captrad to discuss availability, material options and a tailored quotation. Include any drawings, dimensions, performance requirements or delivery timescales that will help us advise accurately.
Project questions
GRP Rebar FAQs
Answers to the questions our technical sales team is most often asked.
What is GRP rebar?
GRP rebar is glass-fibre-reinforced polymer reinforcement for concrete. It combines high-strength glass fibres with a polymer matrix to provide a lightweight, corrosion-resistant alternative to steel reinforcement in suitable applications.
Where is GRP rebar used?
The existing Captrad guidance identifies concrete structures, civil-engineering works, bridges, tunnels, marine and coastal structures, highways, rail and airport infrastructure as common applications.
Why use GRP rebar in marine or coastal structures?
GRP rebar resists corrosion and does not rust in the way steel reinforcement can when exposed to saltwater. It can therefore be considered for seawalls, piers and other concrete structures in harsh coastal environments.
Is GRP rebar lightweight?
Yes. GRP rebar offers a high strength-to-weight ratio, which can make transport, handling and installation more practical than traditional steel reinforcement.
Can GRP rebar be used where electromagnetic interference matters?
GRP rebar is non-magnetic and electrically non-conductive, making it a relevant option for suitable projects where minimising electromagnetic interference or electrical conductivity is important.
What do you need to quote GRP rebar?
Please send reinforcement drawings or schedules, bar sizes, quantities, the concrete application, exposure conditions, programme and delivery location. Final product selection must be checked against the project design and relevant standards.
Product literature
Request product information
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Need GRP Rebar?
Contact Captrad for stock, technical advice or a bespoke manufacturing quotation.
Call 01695 280510