Z 704 RUSTEX – NMB
— India — GAIL pipeline, 2014. A corroded gas pipeline at Nagaram leaked for days, then exploded — killing about 22 people and gutting the village.
— Genoa, Italy — 2018. Corrosion of the steel stays brought the Morandi road bridge down, killing 43 people.
Rust under a sound-looking coating thins walls, weakens structures and fails equipment — until it leaks, burns or collapses.
It converts the rust, seals the steel, bonds the topcoat — and lasts. Multi-chemistry reaches rust to the base of every pit, where a single chemistry only skins the surface; nano-molecular bonding grips steel and topcoat.
A coating over a Z 704 TriArmor-bonded surface — instead of painted straight over rust — is shown to:
- grip around 2× harder to the steel
- last around 2× longer before breakdown
- resist peeling, blistering and under-film corrosion far better
Live, running plants — cold-applied and grit-free; no shutdown, no blasting grit near machinery or product.
Fire-risk & hot-work-banned zones — refinery, gas, solvent and dust areas; brushed on cold, no sparks.
Salt- and acid-laden environments — coastal, fertiliser, chemical and effluent-plant steel; wash, dry, and Z 704 converts beneath the residue and seals it out.
Refineries · petrochemicals · fertilisers · power · steel plants · tanks & pipelines · ports & marine — and across heavy industry, wherever steel must be protected live.
Ph: +91-8527199811 · sales@stanvac.com · www.stanvac.com
- Multi-chemistry conversion — transforms residual iron oxides, including within pits, into a stable, adherent, passive layer that a single-chemistry converter cannot reach.
- Nano-molecular bonding — a covalent coupling bridge between converted steel and the topcoat; an adhesion interface, not a film sitting on the surface.
- Wet adhesion — the covalent bond resists displacement by water; coating adhesion is retained when moisture reaches the interface.
- Sealed & passive — under-film corrosion is starved of reactants; no rust expansion to lift or blister the coating.
- Standard preparation: remove loose rust, scale and old coating by hand or power tool (St 2 / St 3); degrease oil and grease; wash and dry.
- Salt residues (chloride, sulfate): fresh-water wash and dry before application — washing removes loose soluble salts; Z 704 then converts beneath residual traces and seals them out covalently. The converted, sealed interface resists the osmotic blistering by which residual salts defeat single-chemistry converters.
- Acid residues / acid-fume zones: compatible territory — the mixed product is itself acidic (pH 2–4) and passivates the active corrosion that acid fumes sustain. Wash off heavy deposits and dry first.
- Alkaline residues — excluded: cement or lime splash and caustic-zone deposits neutralise the conversion chemistry. Wash and neutralise such surfaces before application.
- Not a substitute for degreasing: oil, grease, mill scale and biological growth must be removed before application.
Oil & gas refining — pipe racks, process columns, exchanger shells, pump/compressor skids, flare structures, spheres, bullets.
Petrochemicals & polymers — cracker and reactor structures, silos, conveyor galleries, bagging-plant steel.
Fertilisers — ammonia/urea plant steel, prilling towers, acid and effluent-area steel, pipe bridges.
Gas processing & distribution — gas plants, LNG terminals, compressor stations, city-gas networks, metering skids.
Pharma, food & beverage — plant, mezzanine and packing-hall steel; no contamination, clean finish.
Steel & metals plants — coke-oven, sinter, blast-furnace and rolling-mill structures, stockyard cranes.
Power generation — boiler and ESP structures, duct and flue steel, coal-handling plant, cooling-tower steel, transmission towers.
Cement — preheater towers, kiln supports, conveyor galleries, bag-house and silo structures.
Tanks, terminals & pipelines — shells and roofs, floating-roof rims, bund steel, loading gantries, manifolds. Marine, ports & offshore — jetties, gangways, cranes, platform and jacket steel, splash-zone members, lock gates. Water & wastewater — penstocks, gates, screens, clarifier bridges, gallery pipework, walkways.
Bridges, infrastructure & railways — girders, trusses, bearings, gantries, OHE masts, wagons, depot steel.
Stored spares & material handling — conveyors, cranes, castings, valve and pump bodies, motors, yard spares.