Semi-super accelerator, widely used in natural gum and synthetic gum, has a wide range of vulcanization, can be used alone or thiocarbamate, thiuram, guanidine and other alkaline accelerator. In the use of furnace carbon black is easy to cause early vulcanization, easy to disperse, do not change color, do not pollute. Bitter, not suitable for food rubber products, mainly used in the manufacture of tire tape, rubber shoes and other industrial rubber products.