Mohawk Innovative Technology, Inc. (MiTi^®) has developed a series of Korolon™ solid lubricant coatings for variety of applications.

Based on pioneering research and development, Mohawk Innovative Technology, Inc. has created a series of solid film lubricant coatings, suitable for high-temperature and high-speed applications. Korolon™ 700, Korolon™ 800, and Korolon™ 1350 are all solid film lubricant coatings suitable for high-speed and high-temperature rotating machinery. The coatings are designed specifically to withstand high temperatures ranging from 500°F - 1350°F at high speeds, while maintaining a low coefficient of friction and an excellent wear resistance. Extensive research and development have lead to refined processing methods to ensure a practical and cost-effective deposition method for coating metallic and ceramic substrates with Korolon™ and other solid film lubricants. Mohawk Innovative Technology, inc. has migrated the coating technology from research and development to full-scale manufacture of the high temperature coatings.

The Korolon™ series consists of several low-friction, wear-resistant coatings (Table 1). While Korolon™ 700 and 800 coatings are polymer based, Korolon™ 1350 series (A and B) are Nickel-chrome based coatings. All coatings contain solid lubricants and are deposited with the spray gun process and subsequently cured and/or heat-treated. The air spray gun process is simple and cost effective for coating deposition. It incorporates the use of a simple spray gun with interchangeable spray nozzle tips and uses a solution state coating mixture.

Maximum allowable temperatures in static thermal tests for the Korolon™ coatings range from 370°C for Korolon™ 700, 385°C for Korolon™ 800 and 800°C for Korolon™ 1350. Adhesion testing of the coatings using standard methods of bend testing, pull-testing, and indentation testing have all confirmed excellent bonding with nickel alloys.