Most coatings see a gradual decline in performance when exposed to high temperatures, but the IOTA 9108 organopolysilazane coating is different—high temperatures not only do not make it ineffective, but also convert it into a ceramic layer to achieve "protection upgrade". Coupled with its inherent advantages of high-temperature resistance and corrosion resistance, it becomes a "high-performance choice" for complex high-temperature scenarios.
Its "ceramization" property is very unique: after the cured coating undergoes high-temperature pyrolysis, the ceramization rate can reach 60%-70% at 800°C, forming amorphous ceramics; when the temperature rises above 1400°C, it will further crystallize into harder crystalline ceramics. Moreover, the composition of the ceramic product can be adjusted according to the environment—in nitrogen or argon, it mainly forms SiC and Si₃N₄; in ammonia gas, it is mainly Si₃N₄; in air, it is mainly SiOCN. This enables it to adapt to the needs of different high-temperature scenarios.
This "upgraded protection" allows it to perform excellently in extreme high-temperature environments. For example, when used as a coating on the inner wall of industrial kilns, as the operating temperature of the kiln increases, the coating gradually converts into ceramics. This not only enables it to withstand higher temperatures, but also enhances heat insulation and corrosion resistance, extending the service life of the kiln; when used as a protective coating for high-temperature sensors, the ceramized coating can better protect the sensors and ensure their accurate operation at high temperatures.
In addition to being able to turn into ceramic, it also has excellent performance in the temperature range from room temperature to medium-high temperature. After curing, it has a hardness of 6H and strong scratch resistance; it resists oxidation and corrosion, and can protect the substrate from the erosion of oxygen and water; its light transmittance is >95%, so coating it on glass will not affect the light transmission effect; it has good adhesion to various substrates, and can firmly adhere to metals, ceramics, plastics, etc.
The application and curing processes are also flexible. Its low viscosity facilitates various coating methods, and two curing methods—heating and ultraviolet light—can be selected as needed. During storage, only temperature and humidity need to be properly controlled, and the unopened product has a shelf life of 1 year. This coating that can "evolve" at high temperatures provides a new idea for protection in extreme high-temperature scenarios, making high-temperature protection more reliable and long-lasting.
