FRP Lining Services
Hand-laid fibreglass reinforced plastic (FRP) lining for tanks, vessels and ducting, using our own vinyl ester and ISO resin systems — Ahmedabad-based application crews.
FRP (fibreglass reinforced plastic) lining builds a seamless, resin-bonded composite barrier directly onto a vessel, duct or tank wall — laminated in place using glass reinforcement and a chemical-resistant resin system.
We supply the resin, matt, surface veil and catalyst system in-house and hand-lay every laminate ourselves, which keeps the material specification and the finished lining tied to a single point of responsibility.
Used for full tank builds, internal relining of ageing vessels, and ducting or hood lining in corrosive fume environments.
Industries & Applications
- Chemical and petrochemical processing
- Electroplating and metal finishing
- Fume scrubbing and ducting systems
- Effluent treatment plants
- Textile dyeing and processing
- Fertiliser and agrochemical manufacturing
Materials & Lining Systems
- Vinyl ester and isophthalic (ISO) resin systems
- Chopped-strand glass matt and woven roving reinforcement
- Resin-rich surface veil (C-veil) for maximum chemical resistance at the wetted face
- MEKP catalyst and cobalt accelerator systems for controlled cure
Resistance
Chemical
Vinyl ester laminate systems handle a wide range of acids, alkalis and solvents; ISO/GP grades suit less aggressive general chemical duty.
Temperature
Suited to ambient and moderately elevated process temperatures — grade selection depends on the specific duty.
Abrasion
A resin-rich surface layer resists erosion from moderate particulate loading in process streams.
Surface Preparation
- 1Grit blasting or grinding of the substrate to achieve a bondable profile
- 2Removal of any existing coating, scale or contamination
- 3Chamfering of edges, welds and nozzle penetrations
- 4Tack-coat / primer application ahead of laminate build-up
Installation Steps
- 1Surface veil (C-veil) applied as the first, resin-rich barrier layer
- 2Successive layers of glass matt/woven roving saturated with resin and rolled to remove entrapped air
- 3Build-up to the specified laminate thickness, curing between layers as required
- 4Topcoat and edge/nozzle detailing for a continuous, monolithic finish
Inspection & Testing
- Spark (holiday) testing to confirm laminate continuity
- Thickness checks against the specified laminate schedule
- Visual inspection of laminate finish, seams and penetrations
Completion Time & Maintenance
Typically 5–15 working days depending on vessel size, laminate schedule and cure time between coats — confirmed after reviewing drawings or a site visit.
- Routine visual inspection for surface crazing, blistering or delamination
- Avoid abrasive cleaning methods that can strip the resin-rich surface layer
- Prompt repair of any mechanical damage to prevent moisture or chemical ingress behind the laminate
Frequently Asked Questions
What's the difference between vinyl ester and ISO/GP resin for FRP lining?
Vinyl ester resin generally offers better resistance to a broader range of acids, alkalis and oxidising chemicals, making it the default choice for aggressive process duty. ISO (isophthalic) and GP (general purpose) grades cost less and suit milder chemical exposure — we help you match the grade to your process chemistry.
Can FRP lining be applied over an existing rubber or coating lining?
It depends on the condition of the existing lining. In most cases we remove the old lining down to bare metal so the new laminate bonds directly to a prepared substrate rather than to a layer that may already be compromised.
How long does an FRP lining need to cure before the tank returns to service?
Cure time depends on resin system, ambient temperature and laminate thickness — we confirm a specific cure schedule and return-to-service date as part of the job plan, and verify cure before handover.
Last reviewed: 2026-08-11. Resistance ranges and process details on this page describe lining systems in general industry use. Exact chemical concentration, temperature and abrasion limits depend on your specific process — confirm suitability with our engineers before specifying a lining system for critical duty.