Hot air vulcanization, also known as hot air curing or hot air bonding, is a process used to cure or bond materials using heated air. It is commonly used in the manufacturing of rubber products, particularly in the production of rubber seals, gaskets, and conveyor belts.

During hot air vulcanization, the material to be vulcanized is typically coated or impregnated with a vulcanizing agent, which is a chemical compound that initiates the vulcanization process. The material is then exposed to hot air at elevated temperatures, typically between 150 to 200 degrees Celsius (300 to 400 degrees Fahrenheit). The hot air activates the vulcanizing agent, causing it to react with the material and form cross-links, which strengthen and stabilize the material’s structure.