As a multi-functional rubber auxiliary, HVA-2 can be used as a vulcanizing agent in the process of rubber processing, as a vulcanizing agent for peroxide systems, and can also be used as an anti-scorching agent and tackifier, which is suitable for both general rubber and special rubber and rubber and plastic systems. In natural rubber, combined with sulfur, it can prevent vulcanization from returning to the original, improve heat resistance, reduce heat generation, aging resistance, improve the adhesion between rubber and Chemicalbook cord and the modulus of vulcanized rubber. It is used in rubber such as tire shoulder glue and buffer layer, which can solve the problem of shoulder space of biased load tires, and can also be used for large-size thick products of natural rubber and various rubber miscellaneous products. HVA-2 is available in neoprene, chlorosulfonated polyethylene, styrene-butadiene rubber, nitrile rubber, isoprene rubber, butyl rubber, bromobutyl rubber, acrylate rubber, silicone