Powder coats usually bake at about 350 degrees F for about 30 min. The thermoplastic resins can cure under these time/temperature parameters. The resins polymerize and turn the coating into a giant macromolecule. Particle vapor deposition or chemical vapor deposition involves vaporizing a ceramic such as TiN or TiAlN and depositing it on a blade in a vacuum chamber. The temperatures required to vaporize the ceramics are quite high, but the entire vacuum chamber does not attain the melting temperature of said ceramics. Many blades are coated with cured plastic or ceramics, but if properly done, the temper of the blade is not affected.