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| Name | Exterior view | Chemical composition | Complex carrier | Characteristics |
|---|---|---|---|---|
| First CTP-80 |  |
Chemical composition: N-Cyclohexylthiophthalimide | Complex carrier: EPDM/SBR | Characteristics: It is a highly effective early-stage vulcanization inhibitor that has virtually no impact on the optimum cure time. Typically used in combination with sulfonamide or thiazole-type accelerators, it effectively prevents scorching of the rubber compound during high-temperature processing, enabling high-speed, high-temperature operation of calenders and extruders—and ultimately boosting the production capacity of vulcanizing machines. Additionally, it enhances the storage stability of the rubber compound and even exhibits a regenerative effect on materials that have already undergone high-temperature treatment or are at risk of scorching. |
| First E/C-80 |  |
Chemical composition: N-Phenyl-N-[(trichloromethyl)thio]benzenesulfonamide | Complex carrier: EPDM/EVM | Characteristics: An effective high-temperature anti-scorch agent suitable for natural rubber, synthetic rubber, and various vulcanization accelerator systems—including, in particular, EPDM—this product effectively prevents premature scorching during the mixing and storage processes, significantly enhancing operational safety. Compared to CTP, E/C offers superior high-temperature anti-scorch performance with lower dosages, reduced odor, and no formation of nitrosamines during vulcanization. It is especially ideal for applications requiring fast vulcanization at elevated temperatures. |
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