Endurobar LLP
BIS LICENSEDIndia's first GFRP rebar manufacturer

The rebar that never rusts. Engineered to endure.

2× stronger, 4× lighter and 100% corrosion-free — built to last 100+ years.

Corrosion Free 2× Stronger Than Steel 100+ Year Life Non-Conductive BIS Certified Lightweight Corrosion Free 2× Stronger Than Steel 100+ Year Life Non-Conductive BIS Certified Lightweight

By The Numbers

A track record built to last

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Projects Reinforced
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Years of Expertise
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Customer Satisfaction

Why Endurobar

Composite reinforcement, re-engineered.

Glass Fibre Reinforced Polymer replaces corrodible steel with high-tensile glass fibres bound in resin — solving the single biggest cause of concrete failure.

100% Corrosion-Free

Immune to moisture, chlorides and alkaline attack. No rust, no spalling — concrete stays sound for its full service life.

2× The Tensile Strength

1000–1200 MPa tensile strength — roughly double conventional steel — so you achieve the same capacity with less material.

4× Lighter To Handle

At a quarter of steel's weight, Endurobar slashes transport, crane and labour costs and speeds up every pour.

100+ Year Design Life

Engineered for a service life beyond a century versus 30–50 years for steel — dramatically lower whole-life cost.

Non-Conductive & Non-Magnetic

Fully dielectric and radio-transparent — ideal for MRI suites, transformer pads, airport pads and light-rail systems.

Sustainable & Zero-Maintenance

No emissions in storage or use, no repair cycles, no cathodic protection — a genuinely lower-carbon reinforcement.

GFRP vs. Steel

The numbers aren't close.

Independently benchmarked mechanical performance of Endurobar GFRP against conventional metal rebar.

Endurobar GFRP

Glass Fibre Reinforced Polymer

Tensile strength1000+ MPa
Corrosion resistanceTotal
Design life100+ yrs
Weight (lighter is better)1.9 t/m³

Conventional Steel

TMT / Metal Rebar

Tensile strength500–600 MPa
Corrosion resistanceRusts
Design life30–50 yrs
Weight (heavier)7.8 t/m³

Product Range

One material. Every form your structure needs.

View all products

Strength, And Then Some

The strongest decision in a build is the one buried in the concrete.

A single Endurobar bar carries the tensile load of a steel bar twice its size — at a quarter of the weight, and with zero risk of the corrosion that quietly destroys concrete from within.

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Where It Works

Reinforcing the toughest environments

Bridges & Decks
01

Bridges & Decks

Decks, approach slabs and MSE walls exposed to de-icing salt and spray.

Foundations & Basements
02

Foundations & Basements

Footings, rafts, retaining and compound walls with 100-year design life.

Swimming Pools
03

Swimming Pools

Pool shells and decks that never rust, stain or crack in chlorinated water.

Septic Tanks
04

Septic Tanks

STPs, ETPs and septic structures in permanently wet, aggressive settings.

From Enquiry to Site

How we deliver

01

Consult & Specify

Our engineers review your drawings and recommend the exact GFRP equivalents by tensile capacity.

02

Precision Manufacture

Bars and cages are pultruded and cut to schedule with full batch-level traceability.

03

Test & Certify

Every batch is tested to IS 18256/18255 and ASTM D7957 before it leaves the floor.

04

Deliver & Support

Lightweight loads ship fast, and our team supports your crew through installation.

Trusted On Site

Engineers who switched, stayed.

We spec'd Endurobar for a coastal water tank. Two monsoons in, zero corrosion and the crew loved how light it was to place.

RP
R. Patel
Project Manager, Coastal Infra

The tensile numbers let us reduce bar count. Faster pours, lower freight, and a 100-year life on paper. Easy decision.

AK
A. Kumar
Structural Consultant

BIS licence and batch traceability were what our client demanded. Endurobar delivered the paperwork and the performance.

SV
S. Verma
Purchase Head, Precast Co.

Certified & Compliant

Credentials you can build on

BIS Licensed ISO 9001:2015 IS 18256:2023 IS 18255:2023 ASTM D7957 NHAI Approved Batch Traceability