HTP-100 coating consists of hard silicon carbide (SiC) and aluminum oxide (Al2O3) particles in a corrosion resistant alumino-phosphate matrix

The easy to apply spray creates – in-situ – a unique 2 layer microstructure: 

  1. hermetic diffusion barrier layer next to the substrate
  2. Microporous layer with low modulus for toughness

HTP 100’s chemistry is stable under harsh environmental conditions – high temperatures of up to 1800 F, oxidizing and reducing atmospheres and ultra high vacuum

Versatile All-Purpose Coating for your many needs!

Click through the tabs below to learn how HTP-100 is engineered to tackle the toughest high-temperature challenges

Then visit the HTP-100 Performance Data page to see more examples of our coating in action, or if you’re ready to test it yourself, click below to buy a spray can, or contact us for large quantity applications!

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  • A few easy steps - spray, dry, and cure in an oven
  • Rapid drying and thermal curing for efficiency in production
  • Strong chemical bonding with substrate enabling excellent adhesion
  • One step process to achieve 25–30-micron thick coating
  • No toxic or heavy metal ingredients and formulation has near neutral pH
  • All processing under ambient air conditions

Protects Many Substrates

  • Metals and their Alloys: Protects against rusting, carburization and oxidation without expensive coating treatments
    • Steel, including low grade steel
    • Stainless steel, including low grade stainless
    • Alloys such as Inconel and other high-temperature nickel superalloys
    • Aluminum and Titanium
  • Seal porous Refractories and composites
  • Protects Welds and Brazes

Enables replacement of high-cost materials with lower cost materials

  • Use of porous refractories coated with HTP-100 in place of advanced refractories
  • Use of lower cost alloys (ex. AUS 304) in place of advanced alloys (Ex. AUS 310)

Suitable for most industrial high temperature service environments (up to 1800 °F)

  • Hermetic ultra-thin interfacial layer formed in situ seals and protects substrates in oxidizing, reducing, or vacuum environments
  • No observable oxide scale for low-grade ferritic stainless steel after 1800 °F exposure in humid air
  • Stable against non-ferrous molten metal and molten salts to 1800 °F
  • Seals porous refractories and composites
  • Protects welds and brazes from galvanic corrosion in thermal cycling service

Enables replacement of advanced alloys with lower grade counterparts (AUS 304 vs AUS 310)


Excellent thermal shock resistance- survives water quench from 1800 °F (1000 °C) FOR MULTIPLE CYCLES

  • Microstructure designed with controlled and thermally stable micro- and nano-porosity for high toughness
  • Good strain capability and excellent thermal shock resistance on coated steel, aluminum, titanium, and other commonly-used alloys
  • Low coating modulus accommodates high CTE mismatch stresses
HTP-100's durable high emissivity spreads heat uniformly across coated surfaces at temperatures up to 1000 °F
  • Promotes high-efficiency heating at high temperatures
  • Improve radiative heat transfer in energy-intensive service environments
  • Minimizes Hot spots in piping exteriors and associated degradation of alloys
  • No outgassing under ultra-high vacuum
  • Protects sensitive substrates from outgassing up to 1800°F
  • Compatible with semiconductor manufacturing