IS90-65

Characteristics and Applications

A vulcanizing agent for natural and synthetic rubbers. It reduces rubber bloom and preserves the tackiness of semi-finished stocks as well as interlayer adhesion. It exhibits excellent dispersibility during compound mixing. Commonly adopted in conventional sulfur vulcanization systems, it forms polysulfide bonds and delivers good initial fatigue resistance together with favorable dynamic and static properties. When used in combination with sulfur-donor vulcanizing agents, it provides satisfactory dynamic performance and moderate resistance to thermo-oxidative aging. It can also act as a co-vulcanizing agent for peroxides to improve the physical and mechanical properties of rubber compounds. It is widely used for weatherstrips, heat-resistant hoses and multi-layer bonded rubber articles.