Pre-dispersed CBS -75 makes rubber scorch time very long, and a safe and fast curing process. In the low-sulfur vulcanization can be used alone, can also with two dithiocarbamates or thiuram accelerators and use the resulting vulcanized rubber has good anti-aging properties and resistance to compression set properties. Pre-dispersed CBS -75 and salts with dithiocarbamates and thiuram accelerators promoting agents of rubber scorch time will be significantly reduced. Thiourea accelerators for pre-dispersed CBS -75 plays a significant secondary role in promoting, especially in low-sulfur yellow rubber compound. In the sulfur alcohol thiuram accelerators and promote rubber compound agent, pre-dispersed CBS -75 to delay scorch, improve processing safety.