N-cyclohexyl-2-benzothiazosulfenamide

N-Cyclohexyl-2-benzothiazolesulfenamide (CAS 95-33-0), also marketed as Accelerator CBS or Accelerator CZ, is a delayed-action sulfenamide accelerator used in the vulcanization of natural and synthetic rubber.

Where is N-cyclohexyl-2-benzothiazosulfenamide used?

• Tire manufacturing: accelerates sulfur vulcanization of tread and sidewall compounds
• Mechanical rubber goods such as conveyor belts and hoses: uniform crosslink density in thick-section parts
• Footwear and industrial molded goods: dimensional accuracy through predictable flow before cure onset
• Combination systems with secondary accelerators such as TBBS or DPG fine-tune cure speed and plateau behavior.

Good to know: Delayed action provides a processing safety window before cure onset, balancing scorch resistance during mixing and extrusion against fast cure rates at mold temperatures.

Commercial specifications

• Standard commercial grades with defined active content and melting point ranges