- There are no more items in your cart
- Shipping Calculated at checkout
-
Sub-Total (inc. VAT)
£0.00
Need Help?
Intertherm Range
International’s Intertherm range delivers high-performance coatings tailored for structures exposed to extreme heat in industrial settings. Designed for chimneys, process vessels, and pipework, Intertherm products offer reliable protection against thermal shock, surface breakdown, and corrosion. Whether for dry heat or insulated environments, this range enhances safety and extends asset life. Built on proven technology and backed by global expertise, Intertherm remains a trusted choice for heat resistance and durability in critical infrastructure.
International Intertherm 50
International Intertherm 50 is a single component, high temperature coating, suitable for temperatures up to 540°C (1004°F) for the protection of steel from corrosion on areas including flare stacks, chimneys, exhausts, vents and pipework, etc.
International Intertherm 181
International Intertherm 181 is a two component, high temperature resistant topcoat based on inorganic silicate technology. Specifically designed for application over inorganic zinc primers, which provides a single specification to be used for the protection of all pipework from corrosion at continuous operating temperatures up to 400°C...
International Intertherm 228HS
International Intertherm 228HS is a highly crosslinked, two component, high build epoxy phenolic coating suitable for exposure in a wide range of highly corrosive environments, including insulated and uninsulated carbon and stainless steel for use on the exterior of pipework, process vessels etc., operating at temperatures up to 230°C (446°F)....
International Intertherm 751 CSA
International Intertherm 751 CSA is a high performance coating that is applied using standard application equipment and cures effectively at ambient temperatures. Capable of providing corrosion protection to steel in both atmospheric service and under thermal insulation operating in thermal cyclical conditions between -196°C (-321°F) and 400ºC...
International Intertherm 875
International Intertherm 875 is a single component, intermediate temperature finish for use in a wide range of industrial environments as a heat resistant finish coat for application over properly primed steelwork in both new construction and as a maintenance coating at temperatures up to 260°C (500°F).
International Intertherm 891
International Intertherm 891 is a one component, general purpose heat resistant paint for use as a heat resistant coating for general site use or as an industrial maintenance coating on both ambient and high temperature steelwork up to 315ºC (600ºF) where an economical aluminium finish is required.
Need Help?
Need Help?
International Intertherm: Heat Resistant Coatings for Industrial Applications
The Intertherm range from International Paints offers a robust selection of heat resistant coatings engineered for industrial environments where thermal protection and long-term durability are essential. Ideal for high-temperature process equipment, piping, and structural steel, Intertherm products are built to withstand extreme heat exposure that standard steel paints cannot, while maintaining film integrity and surface protection.
The range includes both silicone-based and epoxy-based technologies suitable for application in refineries, petrochemical plants, and power generation facilities. Intertherm coatings provide excellent resistance to cracking, peeling, and corrosion, even under severe thermal cycling. They are suitable for use on new constructions or during planned maintenance, offering flexible application options and dependable performance. With solutions tailored for dry heat and under insulation (CUI) scenarios, Intertherm supports both asset longevity and operational safety in demanding service conditions.
Intertherm FAQs
What temperature limits can Intertherm coatings withstand?
Intertherm coatings are engineered for heat resistance across a broad range, with some products rated for continuous exposure up to 650°C. Specific temperature tolerance depends on the formulation—silicone-based products typically offer higher resistance than epoxies.
Are Intertherm coatings suitable for use under insulation?
Yes, certain Intertherm coatings are designed for use in CUI applications, where they prevent moisture ingress and resist corrosion even under thermal stress. These products are ideal for insulated pipework and vessels in aggressive environments.
Can these coatings be used during live operations?
Some Intertherm products allow application onto warm or hot substrates, helping to minimise downtime during maintenance. It’s essential to follow the product’s technical datasheet for allowable surface temperatures and safety guidance during application.
Do Intertherm coatings provide corrosion protection as well?
Yes, in addition to thermal resistance, Intertherm coatings provide a protective barrier against corrosion. For enhanced protection, they can be used in multi-coat systems with a dedicated anti-corrosive primer, especially in aggressive or coastal environments.
What application methods are recommended for Intertherm coatings?
Intertherm coatings can typically be applied using airless spray, conventional spray, brush, or roller depending on the product. Surface preparation to the specified standard is critical for performance—consult the product data sheet for full guidance.