Description: For a long time, low dispersion of insoluble sulfur is a bottlenecking in the production of tire manufacturers in China. Our company through extensive research and development, a great breakthrough has been made in insoluble sulfur dispersion. The associated products have been widely used in domestic large tire manufacturers. IS-HS series IS-HS-8010 IS-HS-7520 IS-HS-7020 IS-HS-6033 OT series OT20 OT33 IS series IS60 IS90 IS6010 IS6005 Rubber Sulfurizers. A. They are widely used for rubber high temperature and fast sulfuration process. They can prevent the frost spouting, strengthen the adherence of rubber-rubber, rubber-steel and rubber-line. When high IS-HS 7520 is applied to the tire rim, the indexes of tire hardness, draw out, avulsion and process performance are improved. B. With excellent dispersion and heat stability, they are used in rubber materials to avoid frost spouting. As a result, sulfurizer coagulation can be prevented due to static electricity, congestion, etc.