Insulation jacketing and lagseal protection
Insulation cladding leaks at seams, support legs, and penetrations, letting water reach the pipe and hide active corrosion under the lagging.
The need for insulation jacketing and lagseal protection
BHI Coatings performs insulation jacketing and lagseal protection across Alvin and the Texas Gulf Coast. Cladding leaks at seams, support legs, and pipe penetrations. Rain and wash-down work in behind the jacket and settle against the pipe. The water hides under the lagging and feeds active CUI, so the corrosion runs unseen until an inspector pulls the cladding and finds the damage already done.
How BHI Coatings does insulation jacketing and lagseal protection
We seal the cladding with a reinforced membrane at the seams and penetrations, then tie that into a weather-side coating. We use systems such as Belzona 3211 lagseal with 9321 reinforcement and weatherproofing topcoats. It is cold-applied on site, with no hot work over the insulated line.
Typically applied with Belzona 3211, Belzona 9321, Belzona 5151, Belzona 5871, matched to the service conditions.
The jacket sheds water at every seam and every penetration. CUI never gets started under the lagging, and the insulation stays dry and effective.

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 →Corrosion under insulation preventionWet insulation traps moisture against hot pipe and vessel walls, driving hidden corrosion that inspectors only find once metal loss is severe.
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 →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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