COATING FAILURE SERIES · 2 of 4
HOT-WORK-BANNED ZONES
WHY COATINGS FAIL EARLY — PART 2
Where One Spark Is Unacceptable — So Rust Stays Under the Paint
No blasting. No grinding. No hot work. The steel gets a wire brush — and the rust gets a future.
A wire brush removes loose rust only. What stays keeps growing. The coat fails in a season or two — exactly where repainting is hardest to permit.
WHERE IT HAPPENS
Refinery & petrochemical units — one grinding spark near hydrocarbons is unthinkable. So pipe racks get painted over rust, decade after decade.
Gas plants, LNG, city-gas stations — flammable zones. Blasting and sparking tools are banned, full stop.
Solvent, paint and chemical storage — vapour zones where hot-work permits are refused outright.
Dust zones — grain, flour, feed, coal, sugar, biomass. A spark in dust is a blast. Prep is forbidden.
Every running plant — even with permits: fire watch, standby crew, stopped work. Easier to skip the prep. So it is skipped.
Rusted live-unit steel — blasting impossible
Explosive dust — no sparks allowed
What every spark costs: permits, fire watch, risk
Why the coating fails
A coating is only as good as the steel under it. Hand cleaning leaves rust in every pit. The rust grows, lifts the film — and in a season the zone needs another permit, another fire watch, another risk.
The answer where sparks are banned
Z 704 RUSTEX – NMB goes on cold, by brush. No flame. No spark. No grit. It converts the rust hand-cleaning leaves behind — to the base of every pit — and bonds the topcoat for years. See the Z 704 flyer beside this page.
PROVE IT IN YOUR LIVE ZONE
Pick rusted steel inside your no-hot-work zone. We treat it cold, in front of you. Free.
sales@stanvac.com · +91-8527199811
STANVAC · SURFACE PROTECTION DIVISION
Plot 551, Sector-37, Pace City-II, Gurugram 122001 · +91-8527199811 · www.stanvac.com