High Emissive Ceramic Coatings — Epo-Weld™
Specialized ceramic coating formulations engineered to maximize infrared emissivity — improving radiant heat transfer efficiency across furnace linings, kilns, steel components, and non-ferrous metal surfaces.
Technical Specifications
Built for High-Temperature Furnace Surfaces
Epo-Weld™ HECC coatings are specified for kilns, furnaces, and process vessels where
maximum infrared emissivity reduces fuel consumption and improves radiant heat transfer.
Frequently Asked Questions
Common questions about Epo-Weld™ high emissive ceramic coatings.
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Emissivity is a measure of how efficiently a surface radiates infrared energy — a value of 1.0 is a perfect emitter. Untreated refractory fibers and metal surfaces typically have low emissivity, meaning much of the energy you put in is reflected or lost rather than radiated to your load. Applying a high-emissivity ceramic coating raises this value dramatically, improving radiant heat transfer, reducing fuel consumption, and improving temperature uniformity across the load.
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Epo-Weld™ HECC-601 is specifically engineered for refractory fiber furnace lining modules. It is designed to bond to porous, fibrous ceramic surfaces and significantly improve their radiant heat transfer efficiency. For dense refractories and crucibles, HECC-610 is the correct choice as it provides strong adhesion on non-porous substrates.
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Most Epo-Weld™ ceramic coating grades are rated for continuous service up to 2000°F. HECC-604 and HECC-627 are the top-tier grades, each rated to 2400°F — making them suitable for the most extreme kiln, incinerator, and high-temperature process vessel environments. HECC-636, formulated for non-ferrous metals like aluminum and copper, is rated to 1100°F.
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Yes. HECC-618 is formulated specifically for carbon and stainless steel heating tubes and heat exchangers, providing high-emissivity performance while also preventing corrosion and scaling. HECC-627 is designed for steel alloy process vessels and stacks, maintaining exceptional emissivity and adhesion under prolonged severe thermal stress up to 2400°F.
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All Epo-Weld™ HECC grades cure in 1 hour at 200°F. This low-temperature cure schedule makes them practical to apply in the field and in most shop environments without specialised high-temperature cure ovens. After initial cure, the coating is rated for its full service temperature range.
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Results depend on the baseline emissivity of the substrate, furnace design, and operating profile, but high-emissivity ceramic coatings on ceramic fiber linings commonly reduce fuel consumption by 15–30% by preventing heat loss and improving temperature uniformity. Contact our technical team with your application temperature, substrate, and furnace type for a more precise estimate.