Do Thermal Barrier Coatings Work With High Temperatures?


Thermal Barrier Coatings (TBCs) are innovative materials designed to provide effective thermal protection in high-temperature environments. These coatings are applied to various surfaces, including metal roofs, residential structures, and concrete slabs, to reduce heat transfer and enhance the performance and longevity of the coated components.

The effectiveness of TBCs lies in their unique thermal properties. The ceramic coating possesses a much lower thermal conductivity compared to the metal substrate, reducing heat transfer and keeping the coated surface cooler. Additionally, TBCs have a low thermal expansion coefficient, which allows them to withstand the cyclic temperature changes experienced in high-temperature applications without cracking or delaminating.



Types of Thermal Barrier Coatings

When it comes to thermal barrier coatings, there are several types available that offer different properties and benefits. These coatings are designed to protect components from high temperatures, reducing heat transfer and improving overall performance. Let’s take a closer look at some of the most commonly used types of thermal barrier coatings.

Ceramic Coatings

Ceramic coatings are widely used in thermal barrier applications due to their excellent thermal properties. They have low thermal conductivity, which means they can effectively reduce heat transfer. Ceramic coatings, especially those made from zirconia-based materials, also have low thermal expansion coefficients, allowing them to withstand thermal cycling without cracking or delaminating.

ThermaCote® uses ceramic technology to produce a fluid applied material to improve energy efficiency and safety in both commercial and residential buildings.

Metallic Coatings

Metallic coatings, such as those made from nickel and other alloys, are also used as thermal barrier coatings. These coatings typically consist of a metallic bond coat that provides adhesion to the substrate, followed by a ceramic top coat for thermal insulation.

Environmental Barrier Coatings (EBCs)

EBCs are specifically designed to protect materials from aggressive environments, such as high-temperature oxidation and corrosive gases. These coatings often consist of multiple layers, including a thermal barrier layer and an outermost layer that provides environmental protection. EBCs are commonly used in aerospace applications, where engines and turbine components are exposed to extreme conditions.

Solution Precursor Plasma Spray (SPPS) Coatings

SPPS coatings are a newer technology in the field of thermal barrier coatings. These coatings are created by using a solution precursor, which is atomized and heated in a plasma jet. The resulting particles are deposited onto the substrate, forming a dense and uniform coating. SPPS coatings offer excellent thermal protection and have shown promising results in terms of thermal stability, mechanical properties, and durability.

Susceptibility to Damage from Extreme Temperatures

When it comes to extreme temperatures, the performance and durability of materials are put to the ultimate test. Whether it’s the scorching heat of a blazing summer or the bone-chilling cold of a harsh winter, extreme temperatures can have detrimental effects on various surfaces and structures.

Many materials, if not adequately protected, can suffer from thermal expansion, contraction, and even outright failure when exposed to extreme heat or cold. This is particularly critical in extreme heat situations where metal substrates can expand significantly, leading to stress and structural damage. By reducing the temperature differential between the surface and the substrate, thermal barrier coatings mitigate these thermal expansion and contraction challenges.

By providing a tough coating with high thermal resistance, thermal barrier coatings like ThermaCote® are designed to withstand extreme temperature cycling and maintain the structural integrity of the underlying substrate.


How Thermacote® Can Protect Your Building

ThermaCote®, a high-performance thermal barrier coating, offers effective protection for buildings against extreme temperatures and corrosion. 

ThermaCote® is an indoor and outdoor solution that can be used in both commercial and residential applications. It is designed to be easy to apply, resembling latex paint once dried. With ultra-low VOCs at just 5.3 G/L, ThermaCote® ensures a safe and environmentally-friendly application.

One of the key benefits of ThermaCote® is its ability to enhance the performance of building insulation and HVAC ductwork. By preventing the escape of hot or cool air, it helps to create a comfortable and energy-efficient environment. This not only improves the overall comfort of the building’s occupants, but also helps to reduce energy consumption and costs.

Whether it’s protecting against extreme heat or cold, ThermaCote® is a reliable and effective solution for thermal protection. 

Contact ThermaCote® today to learn more about weather barrier coating!