According to the curing conditions, it can be divided into three types: cold curing, room temperature curing and hot curing.

Cold vulcanization can be used for the vulcanization of thin film products. The products can be immersed in a carbon disulfide solution containing 2% to 5% sulfur chloride, and then washed and dried. During room temperature vulcanization, the vulcanization process is carried out at room temperature and atmospheric pressure, such as the use of room temperature vulcanization rubber (mixed rubber solution) for bicycle inner tube joints, repair, etc., Qingshan New Materials environmentally friendly solvent-free three-proof paint is a room temperature vulcanized rubber products. Thermal vulcanization is the main method of vulcanizing rubber products.

According to the different curing media and curing methods, thermal curing can be divided into three methods: direct curing, indirect curing and mixed gas curing. ① Direct vulcanization, put the product directly into hot water or steam medium for vulcanization. ② Indirect vulcanization, the product is vulcanized in hot air. This method is generally used for some products with strict appearance requirements, such as rubber shoes. ③Mixed gas vulcanization, first use air vulcanization, and then use direct steam vulcanization. This method can overcome the shortcomings of steam vulcanization that affect the appearance of the product, and can also overcome the disadvantages of long vulcanization time and easy aging due to the slow heat transfer of hot air.

The above vulcanization methods are batch production. Some rubber products of unlimited length can be continuously vulcanized, such as salt bath vulcanization, fluidized bed vulcanization, microwave or high frequency vulcanization, drum vulcanization of adhesive tapes and rubber plates. In addition to sulfur vulcanization, rubber products can also be used for sulfur-free vulcanization and high-energy ray vulcanization, but their applications are limited.