MT-321 High Temperature Insulator

Discover MT-321, the game-changing High Temperature Insulator. With a rapid cure time, robust UV, and chemical resistance, this anti-stick coating is the answer to extreme heat challenges in marine, aerospace, construction, and more. Its superior hydrophobic properties ensure maximum protection against rust and corrosion, making it the ultimate choice for modern equipment and machinery. Dive into a world of advanced insulation with MT-321, where space-age meets efficiency.

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Introducing MT-321 High Temperature Insulator, a state-of-the-art hard film forming anti-stick coating. Curing in under 2 hours at ambient temperatures, MT-321 boasts an unmatched resistance to UV degradation, chemical attacks, and freeze-thaw cycles. With a performance life spanning over two decades, this product is not only perfect for the marine industry but also excels in aerospace, architectural, construction, industrial, and automotive equipment sectors.



High Thermal Heat Protection: MT-321 safeguards your equipment from heat damage up to 1250°C and the detrimental effects of thermal expansion/contraction.

Waterproof: Thanks to its strong hydrophobic properties, MT-321 acts as a barrier against rust and corrosion on both ferrous and non-ferrous metals.

Chemical Resistant: Designed for areas prone to chemical hazards, MT-321 holds its own against a majority of chemicals. For comprehensive details, consult the TDS.

Ultra Violet Resistant: MT-321 stands firm against UV degradation, ensuring no yellowing, whitening, or toxicity.

Diverse Application: From brakes & calipers, industrial exhaust systems, structural steel, fire barriers, to barbecues & stoves, MT-321’s applicability is vast and varied.


MT-321’s unique weathering characteristics position it as the prime choice for immersion service across various industries, from marine to automotive. The singular nano-technology formula in MT-321 protects equipment and machinery against the perils of extreme temperatures which could escalate maintenance and replacement costs or even result in total failure. Beyond just temperature resistance, MT-321 is a proactive solution to mitigating damages and costs related to excessive heat. It keeps heat on the coating side while ensuring a comfortable microclimate on the opposite side, simultaneously safeguarding substrates from threats like rust, mold, and mildew. Furthermore, MT-321 significantly reduces energy operating and maintenance costs, negates water damage, thwarts mold & mildew, and combats corrosion.

What Sets MT-321 Apart?

Masters has channeled cutting-edge space technology to create MT-321, an extreme-heat nano-technology-based thermal coating. Surpassing the innate capability of ceramics to reflect heat, MT-321 is designed for substrates where traditional insulation materials falter. It amplifies building and equipment efficiency by offering unparalleled reflective thermal insulation.


Technical Specs:

  • Curing Time: Under 2 hours in ambient temperatures
  • Lifespan: Over 20 years
  • Resistance: UV degradation, chemical attacks, freeze-thaw cycles
  • Temperature Tolerance: Up to 1250°C
  • Composition: Single component nano-technology formula

MT-321 Applications

List of usage and application scenarios for the MT-321 Product


Contact us for the most accurate and up-to-date information.

MT-321 is a high-temperature insulator designed to protect and insulate against extreme heat up to 1250 C. Its unique formulation ensures that it remains impervious to UV degradation, chemical attacks, and freeze-thaw cycles, with a longevity of over twenty years.

Yes, MT-321 can be applied to various substrates, including brakes, calipers, industrial exhaust systems, structural steel, and many others. Its formulation makes it suitable for applications where traditional insulation materials fail or cannot be used.

MT-321 is versatile and can be applied using a brush, roller, or sprayer. It doesn't require a primer, and a colored top coat can be applied after the coating has cured.

Absolutely! MT-321 is a water-based solution that contains no VOCs (Volatile Organic Compounds) and will not off-gas, making it environmentally friendly and safe for use.

MT-321 is specially formulated to resist UV degradation. It remains non-yellowing and non-whitening, ensuring that the coating maintains its integrity and appearance even under extreme ultraviolet conditions.

Yes, MT-321's water-based formulation offers resistance to fire, ensuring that it can be safely used in various conditions without concerns regarding combustion.

One of the standout features of MT-321 is its impressive performance life of over twenty years, backed by the manufacturer's guarantee.

Definitely! MT-321's excellent weathering characteristics make it a perfect choice for immersion service in the marine industry, protecting against corrosion, rust, mold, mildew, and other destructive elements often found in such environments.

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