Corrosion under insulation prevention
Wet insulation traps moisture against hot pipe and vessel walls, driving hidden corrosion that inspectors only find once metal loss is severe.
The need for corrosion under insulation prevention
BHI Coatings performs corrosion under insulation prevention across Alvin and the Texas Gulf Coast. Insulation soaks up rain, wash-down, and condensation, then holds all of it against the hot pipe or vessel wall. The steel corrodes out of sight, often across the temperature band where CUI runs fastest. Nobody sees it until an inspector strips the lagging, and by then the metal loss is deep enough to force unplanned repairs and pull lines out of service.
How BHI Coatings does corrosion under insulation prevention
We prep the bare hot surface and brush a barrier coating onto the steel before the insulation goes back on, often with the line still in service. We use high-temperature CUI systems such as Belzona 5851 and 5831, matched to the operating range. The coating cures cold on the running surface, so nothing has to shut down and no hot work is required.
Typically applied with Belzona 5851, Belzona 5831, matched to the service conditions.
The steel gets a protective barrier across the CUI temperature band. The hidden corrosion stops, and the line keeps producing right through the repair.
More High-Temperature Coatings applications
Bolted and threaded assemblies on hot equipment seize together, so the next overhaul means cutting parts free instead of unfastening them.
Learn more →High-temperature equipment liningEquipment running well above ambient strips standard immersion linings, exposing bare steel to corrosion and process attack.
Learn more →Hot vessel and pipework in-situ coatingTanks, vessels, and pipework running hot cannot be cooled or drained, so conventional linings that need an ambient substrate never get applied.
Learn more →Insulation jacketing and lagseal protectionInsulation cladding leaks at seams, support legs, and penetrations, letting water reach the pipe and hide active corrosion under the lagging.
Learn more →All 5 in High-Temperature CoatingsThe whole capability in one place, with the work grouped.
See the capability →Contact BHI Coatings
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