Industrial Tank Spray Foam Insulation
Seamless thermal insulation for industrial tanks and vessels — spray foam wraps curved surfaces with no joints or cold-bridging.
Why spray foam for tanks and vessels
Industrial tanks and process vessels — curved steel shells holding water, chemicals or process fluids — lose or gain heat rapidly through their bare metal walls and sweat heavily when contents sit below ambient temperature. That heat loss wastes energy, that condensation corrodes the shell and runs onto plant below, and conventional jacket insulation leaves seams and fixing points that let moisture track behind it.
Enverge closed-cell spray foam self-bonds directly to the curved steel as it cures, wrapping the vessel in one seamless skin with no joints, straps or fixings for water to get behind. It follows the curvature of the tank continuously, insulating against heat loss or gain while its closed-cell structure resists moisture and keeps the steel surface above dew point to stop sweating.
The result is a tightly wrapped, well-insulated vessel that holds process temperature, stops condensation and corrosion, and accepts a protective weatherable finish over the foam for external durability. Because the coating is seamless and self-bonding, there are no cold spots at joints — the whole shell performs as one continuous insulated unit.
The benefits for tanks and vessels
Wraps Curved Vessels
Self-bonds seamlessly around the curved steel shell of tanks and process vessels with no joints.
Holds Process Temperature
Insulates against heat loss or gain to keep stored fluids at their required process temperature.
Stops Vessel Sweating
Keeps the steel surface above dew point so cold tanks no longer condense and drip onto plant.
No Seams To Leak
One continuous skin removes the joints and fixings where jacket insulation lets moisture track behind.
Guards Against Corrosion
Removes the trapped surface moisture that drives external corrosion of the tank shell.
Takes A Weatherable Finish
Accepts a protective top coat over the foam for durable, weather-resistant external performance.
A seamless wrap
Closed-cell foam follows the curve of the tank for a continuous, joint-free insulated layer.
Enverge closed-cell spray foam (Nexseal LE) is applied directly to the prepared steel of the tank or vessel, self-bonding and expanding to follow its curvature in a continuous, jointless layer. Its low moisture absorption and closed-cell structure keep the shell above dew point to stop sweating, and a protective weatherable finish can be applied over the foam for external durability.
- Seamless wrap bonds to curved steel vessels
- Holds process temperature and stops sweating
- Takes a protective weatherable external finish
- 25-year manufacturer-backed warranty
Enverge Nexseal LE — verified performance
Typical published values for Enverge Nexseal LE closed-cell foam. Full technical specification →
Specification & compliance for tanks and vessels
Tanks and vessels are exactly the shapes segmented lagging fails on: curved, jointed and exposed. Sprayed closed-cell foam wraps the entire tank in one continuous 25–80 mm layer that bonds to steel, GRP and plastic alike — no joints, no cold bridging, no moisture ingress paths.
Externally, the foam is finished with a Gaco elastomeric topcoat for UV and weather protection. Most tanks are completed in 1–3 days without draining or decommissioning, protecting process temperatures and preventing frost damage year-round.
From enquiry to warranty
Enquire
Tell us about your tanks and vessels & building.
Survey
Free survey of your tanks and vessels & condensation check.
Specify
The right system for your tanks and vessels.
Install
Approved applicators, minimal disruption.
Warranty
Handover pack & 25-year warranty.
Real tanks and vessels spray foam applications
Commercial projects
Depot Events, Cardiff
Closed-cell spray foam across a large warehouse-style venue roof.
Ibstock Brick
Insulation for a temperature-critical manufacturing process.
The Box, Plymouth
Concrete spray foam eliminating cold-bridging and condensation.
Get a quote for your project
Send us your building details and our technical team will specify the right system and a clear budget. No obligation.
Tank insulation, answered
Can spray foam stop my process tank from sweating?
Yes. Bare cold tanks condense because their steel sits below dew point. Closed-cell foam bonds to the shell and keeps the surface above dew point, so the vessel stops sweating and no longer drips onto plant and equipment below.
Does it work on curved or irregular vessels?
Yes — that's a key advantage. The foam is sprayed as a liquid that self-bonds and expands to follow the curve of the shell continuously, with no joints or fixings, so it suits tanks and vessels of awkward or rounded geometry.
Will the insulation help maintain process temperature?
It significantly reduces heat transfer through the tank wall, helping hold contents at their required temperature and cutting the energy used to heat or cool them. We'll assess your vessel and process needs to confirm the right specification.
Can the foam be finished for outdoor tanks?
Yes. For external vessels a protective, weatherable finish is applied over the cured foam, giving a durable surface that stands up to weather and UV while the closed-cell foam underneath does the insulating.
Is it suitable for tanks holding chemicals or specific fluids?
We insulate the external steel shell rather than the contents, so the foam isn't in contact with the stored fluid. For any specific process, temperature or compatibility requirements we'll review the application with you before specifying.
Does the tank need to be drained first?
No — external spray application typically proceeds with the tank in service, and most projects complete in 1–3 days.
How is the foam protected from the weather?
Externally the foam is coated with a Gaco elastomeric finish for long-term UV and weather resistance.
What depth is applied to a tank?
Typically 25–80 mm depending on the contents, target temperature and exposure — specified after survey.
Insulate your tanks and vessels the right way
Specialist commercial spray foam, installed UK-wide by the Duratite Group's spray foam specialists.
Book a Free Survey →or call 01208 832 602