Acid-proof FRP lining is a bonded, seamless composite barrier — not a paint or a coating — built up directly onto steel or concrete to stop chemical attack. Shri Ganesh Sales has been applying it across the Kota–Bundi–Rawatbhata industrial belt for over 25 years, and we specify the laminate against the chemical you actually run: its concentration, and its temperature. That single decision determines whether the lining lasts a decade or blisters within a year.
We line MS and RCC storage tanks, ETP and STP pits, pickling tanks, dyke walls, trenches, process floors and vessels — on site, around your shutdown window.
Unprotected mild steel in acid service can perforate within months. Concrete does not fare better — low-pH effluent eats cement paste, exposes aggregate and then attacks rebar, and by the time seepage shows on the outside of an ETP wall, the damage inside is well advanced. Shri Ganesh Sales provides acid-proof and chemical-resistant lining for mild steel storage tanks and vessels, RCC pits, trenches and dyke walls, ETP and STP civil tanks, pickling and dosing tanks, plant floors, battery rooms, drains and sumps — across Kota, Bundi, Rawatbhata, Jaipur and project sites throughout Rajasthan. We have supplied and serviced this region's industry for more than 25 years, and some of the tanks we lined years ago are still holding acid today.
Serving industrial hubs across Rajasthan: Kota, Bundi, Rawatbhata, Jaipur.
Engineered for the specific thermal and chemical profiles of North Indian industrial clusters.
The correct FRP lining system depends on the chemical being handled, its concentration, operating temperature, exposure conditions and the substrate being protected. Different industrial chemicals require different corrosion-resistant laminate systems, so there is no single FRP lining specification suitable for every application.
At Shri Ganesh Sales, we assess your operating conditions and recommend the appropriate lining system for the application. This ensures the lining is designed for the actual chemical service rather than using a generic specification. We undertake chemical-resistant FRP lining for applications involving:
Chemical name
What chemical will come into contact with the lining?
Concentration
What is the approximate concentration or strength?
Operating temperature
What is the normal and maximum operating temperature?
Equipment or structure
Tank, RCC pit, ETP/STP tank, floor, trench, vessel, etc.
Existing condition
New construction, bare steel/concrete, existing FRP, etc.
Get the Right Lining for Your Chemical
Send us these details or simply WhatsApp photographs of the tank or affected area.
WhatsApp Us NowCall us directly for immediate assistance from our technical team.
Call: +91 94605 68660We specify the lining for your chemical service rather than offering a one-size-fits-all coating.
Our goal is long-term performance, safety and reliability for your critical equipment.
The corrosion barrier — the layer actually doing the chemical protection — should be a minimum of 2.5 mm. That figure comes from established FRP design practice under BS 4994 (design of vessels and tanks in reinforced plastics) and ASTM D3299 (filament-wound glass-fibre-reinforced thermoset resin chemical-resistant tanks).
| Layer | Composition | Thickness | Purpose |
|---|---|---|---|
Surfacing veil | C-glass or synthetic surfacing veil, resin-rich (~85–90% resin) | 0.25 – 0.5 mm | Smooth chemical-resistant surface |
Corrosion barrier | 2 × chopped-strand glass mat | 2.5 mm (minimum) | Primary chemical protection layer |
Aggressive / hot service | Additional CSM plies | 4 – 6 mm | For higher chemical concentration or temperature |
Structural laminate | Built to load requirement | As designed | Provides strength and structural integrity |
The chemical only ever contacts the resin-rich veil. Everything behind it is there to carry load.
A 1 mm "acid-proof lining" is a paint job with a different name.
If a quotation doesn't state the corrosion-barrier thickness and the resin grade, it isn't a specification — it's a price.
2.5 mm minimum corrosion barrier for chemical protection
Higher temperature or concentration = extra protection
Always ask for written specification, not just a price
We follow BS 4994 & ASTM D3299 design principles
There is no single per-square-foot price for acid-proof FRP lining. The final cost depends on the chemical service, required lining system, thickness, substrate condition, site access and installation requirements. For this reason, we recommend site-specific pricing rather than a generic rate quoted over the phone. Two tanks with the same surface area can have very different project costs depending on their condition and operating requirements.
That spread is wide for a reason. Six factors drive where your job lands — and we go through the published rate bands in more detail in our guide to FRP lining cost in Rajasthan:
Resin grade
The single biggest lever. Novolac vinyl ester resin can cost several times GP polyester per square metre. It is also the last place to economise — resin is a small share of project cost and decides the entire service life.
Laminate thickness
A 2.5 mm barrier and a 6 mm heavy-duty build are different jobs in both material and labour hours.
Surface preparation
Abrasive blasting a pitted steel tank costs more than sanding a sound one. Concrete needing scabbling and blowhole filling costs more than a smooth new pour.
Access and geometry
Confined-space entry, scaffolding, overhead work, and vessels full of internals all add hours. A flat floor is quick. A tank with nozzles and baffles is not.
Shutdown window
Night shifts, weekends and hard turnaround deadlines carry a premium.
Area and location
Larger areas bring the per-sq-ft rate down. Sites inside the Kota–Bundi–Rawatbhata belt avoid mobilisation charges entirely.
Most lining failures are not resin failures — they are preparation failures.
Here is the actual sequence:
We visit, measure, and assess substrate condition. On steel we check pitting depth and weld quality; on concrete, age, moisture and any existing coating.
Non-negotiable, and where cheap contractors cut corners.
Carbon steel
Abrasive blast to Sa 2½ (ISO 8501-1) with an angular anchor profile of 50–75 microns. Priming follows immediately, before flash rust forms.
Concrete / RCC
Structure must be fully cured and dry — we test substrate moisture before starting, because trapped moisture is the most common cause of blistering months later. Laitance is ground or scabbled off, blowholes filled with resin putty, and a cove fillet formed at every floor-to-wall junction so the laminate never turns a sharp 90°.
Existing FRP
Gloss ground back to expose fresh laminate for a chemical bond.
Resin-rich surfacing veil first, then two layers of chopped-strand mat, to 2.5 mm minimum.
Plies built to required thickness, controlling exotherm between layers so the laminate does not crack from its own cure heat.
Barcol hardness reading to confirm cure, thickness verification, and — where service justifies it — a high-voltage spark test across the lined surface to find pinholes and holidays invisible to the eye.
Nothing is handed over undercured: an undercured laminate has not reached full crosslink and will be attacked by the very chemical it was built for.
Cured, inspected, back in service.
In our experience across 25 years in Kota, five causes account for nearly every premature lining failure:
| Cause | What you see | Prevention |
|---|---|---|
Wrong resin for the chemical | Blistering, softening, resin whitening within months | Specify by chemical + concentration + temperature |
Moisture in the concrete | Osmotic blisters, disbondment in sheets | Moisture test before lay-up; never rush a green pour |
No anchor profile on steel | Lining peels away intact | Blast to Sa 2½, 50–75 µm profile |
Undercure | Soft laminate, chemical attack from day one | Barcol reading before handover |
Missing cove fillet | Cracking at the floor–wall junction | Radius every 90° internal corner |
Tell us what happened. The failure mode usually identifies the mistake, and it tells us what to specify instead.
Kota sits in one of India's more corrosion-intensive industrial regions, which is exactly why this work exists here.
Gadepan · 35 km from Kota
Chambal Fertilisers operates three urea plants totalling around 3.4 million MT per year — roughly a tenth of India's urea output — alongside about 1.3 million MT/year of ammonia. Its expansion added a weak nitric acid plant (210,000 t/yr) and technical ammonium nitrate capacity (240,000 t/yr), both brought online through 2026.
Rawatbhata · Kota
Rajasthan Atomic Power Station at Rawatbhata runs six PHWR units (1,180 MW), with RAPS-7 (700 MW) grid-connected in March 2025 and RAPS-8 in commissioning. Kota Super Thermal Power Station adds demand for cooling-water, effluent and DM-plant corrosion protection.
Kota Industrial Area · Bundi · Hadoti belt
The RIICO estates around Kota — Indraprastha, Chambal and Hadoti among them — run HCl, caustic, sulphuric acid and process liquors through tanks and pits that bare concrete cannot survive. Hadoti is also turning into an ethanol belt: two grain distilleries are already running and three more are under construction, among them Pingaksh Beverages at Talera in Bundi, at roughly 250 KLPD.
Distillery spent wash and pharmaceutical effluent are low-pH, high-solids streams — they need lined collection pits and ETP tanks, not bare RCC.
Kota is our base, and the bulk of our work sits inside the Kota–Gadepan–Bundi–Rawatbhata belt.
Core belt
Most of these plants are a short drive from our godown — which is why we can measure in the morning and quote the same afternoon.
Regular
We take on lining work here regularly, and supply resin for chemical tanks in Jaipur.
Project-based
Acid-proof lining anywhere in the state where the scope justifies mobilising a team.
25 years in this market means we have seen which systems come back and which don't. We'll tell you when GP resin is genuinely adequate — and when it absolutely isn't.
1,000+ FRP and MRO SKUs held locally. A lining job doesn't stall waiting for a resin truck from Ahmedabad.
Inspection and measurement first, then a written scope naming resin grade, thickness and timeline. No blind per-square-foot estimates.
Lining is a turnaround job. We plan around your window, including nights and weekends.
Industrial buyers typically message three to five vendors at once and go with whoever responds first. Most of our quotations go out within 4 hours.
Lining, fabrication, repair and material supply from a single GST-registered supplier with 100+ regular clients.
