GFRP Rebar Supplier in Kolkata
Why Kolkata's delta construction demands GFRP rebar
Hooghly delta humidity, annual monsoon flooding and KMWSA saline groundwater have made corrosion-free reinforcement a hard-spec requirement across the city's low-lying builds.
Rebar for Kolkata Metro Phase 2, New Town and KoPT
Kolkata sits in one of the most challenging construction environments in the country. Hooghly delta humidity, monsoon flooding across the low-lying south and east, and chloride-heavy groundwater around Salt Lake and Rajarhat mean Fe 500 steel corrodes 30-40% faster here than in central India. From Kolkata Metro Phase 2/3 viaducts to New Town's IT campuses, KoPT (Kolkata Port) berth extensions and the Ma Flyover network, every long-life asset is being re-specified for corrosion-free reinforcement.
Hindustan FRP's IS 18256:2023 certified GFRP rebars are immune to chloride, sulphate and moisture attack. They deliver 2× the tensile strength of Fe 500 at a quarter the weight — critical for high-rise podiums in Rajarhat and New Town where reinforcement dead-load reduction unlocks additional saleable floors, and equally important for KoPT port infrastructure that sees daily tidal submersion.
We dispatch to project sites across KMDA (Kolkata Metropolitan Development Authority), Howrah, Bidhannagar, New Town, Sonarpur and the wider West Bengal construction belt with 120-hour lead times, including MoRTH & NHAI approved bent stock for NH-16 (Kolkata-Chennai) works and Kolkata Metro viaduct decks.
Kolkata at a glance
The Numbers Speak.
4×
Massively reduces handling and transport loads.
2×
Exceptional durability for high-load applications.
50+
1100
0.116
Extremely lightweight, significantly reducing transportation and on-site handling costs.
Why Kolkata projects specify Hindustan FRP
Six reasons contractors across the district specify our GFRP over steel and epoxy-coated rebar.
Immune to Hooghly delta chloride and humidity
Flood-zone grade for low-lying south Kolkata
KoPT-approved for port and tidal infrastructure
KMRCL compliant for Metro Phase 2 viaducts
MoRTH & NHAI approved for NH-16 works
Standing route from factory to KMDA
GFRP vs Steel Grade 500
Property
GFRP
Steel
Tensile Strength
1100+ MPa
500 MPa
Weight (10mm dia)
0.116 kg/m
0.617 kg/m
Continuous Length
Up to 100 m
12 m
Lifespan
80+ years
50 years
Corrosion Free
✓ Yes
✕ No
Delivery reach across Kolkata & West Bengal
KMDA-wide dispatch with pincode-level coverage from Central Kolkata to Salt Lake, New Town, Howrah and beyond — direct from factory, no middleman markup.
Pincode coverage
We deliver directly to project sites within the following KMDA pincode belts. Full coverage across Salt Lake, New Town, Rajarhat and the wider Kolkata metropolitan area.
Site not in the list? We serve every project pincode across West Bengal and eastern India with 120-144 hour lead times — reach out for a delivery ETA.
GFRP rebar in Kolkata — common questions
How fast can you deliver GFRP rebar to a Kolkata site?
120 hours from order confirmation to any project pincode within KMDA limits and the wider West Bengal construction belt. We ship direct-from-factory with no distributor markup, and lead times stay predictable regardless of project size.
How does GFRP handle Kolkata's year-round humidity?
It's completely immune. GFRP is a glass-fibre-epoxy composite with zero metallic content — chloride, sulphate and moisture cannot corrode it. Kolkata's 80%+ humidity and Hooghly delta groundwater have zero long-term effect on GFRP-reinforced slabs and structural elements over the 60-year design life.
Is your GFRP rebar approved for KMDA and Kolkata Metro projects?
Yes. Our IS 18256:2023 certification, plus MoRTH IRC:112 and KMRCL-compliant material specs, cover KMDA stormwater infrastructure, Kolkata Metro Phase 2/3 viaducts and KoPT berth extensions.
Can GFRP replace steel in KoPT port infrastructure?
Yes — it's the go-to reinforcement for tidal-zone port work. GFRP is fully immune to chloride, sulphate and tidal submersion attack, delivering a 60-year design life for berth extensions, container yard slabs and tidal retaining walls where Fe 500 would need major repairs from year 15 onward.
How does GFRP perform in South Kolkata's flood zones?
It's the ideal specification. Behala, Garia and East Kolkata Wetlands see recurring monsoon waterlogging — GFRP-reinforced slabs and retaining walls stay structurally sound through repeated wet/dry cycles, with zero rust jacking or cover spalling over the design life.
Do you supply factory-bent stock for Metro Phase 2 viaducts?
Yes. Factory-bent U-shapes, L-shapes and custom stirrups for viaduct girders, deck slabs and parapet walls are pre-formed to the drawing and delivered ready-to-tie. Full MoRTH IRC:112 compliance for metro concrete work.
Hindustan FRP
IS 18256:2023 certified GFRP Rebars