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| Name | Exterior view | Chemical composition | Complex carrier | Characteristics |
|---|---|---|---|---|
| First 3M (29)-50P |  |
Chemical composition: 1. 1,1-Bis(tert-butylperoxy)-3,3,5-trimethylcyclohexane | Complex carrier: | Characteristics: Particularly well-suited for the vulcanization of transparent products, such as glass-glue shoe soles, this material offers one of the highest levels of transparency among peroxide-cured systems. Certified by the U.S. FDA, it is non-toxic and can be used in food-grade and pharmaceutical-grade applications—such as high-pressure cooker sealing rings, for instance. The vulcanization process is remarkably fast, with minimal compression set. When combined with bridging aids like TAIC or TMPTMA, the curing speed is further accelerated. This product is ideal for crosslinking ethylene-propylene rubber, nitrile rubber, silicone rubber, chlorosulfonated polyethylene, and polyurethane-based elastomers. |
| First 101 (Double 25) - 70P |  |
Chemical composition: 2,5-Dimethyl-2,5-bis(tert-butylperoxy)hexane | Complex carrier: | Characteristics: Used as a crosslinking agent for natural rubber, synthetic rubber, and thermoplastic polyolefins, this compound features a bifunctional structure. It is commonly employed as a crosslinker and initiator in applications such as silicone rubber, chlorosulfonated polyethylene, polyurethane, and EVA. Compared to products like 3M and di-tert-butyl peroxide, it offers superior processing safety and ease of handling. Moreover, vulcanized products made with this agent exhibit excellent physical properties and outstanding heat resistance. |
| First 101 (Double 25) - 50P | |
Chemical composition: 2,5-Dimethyl-2,5-bis(tert-butylperoxy)hexane | Complex carrier: | Characteristics: Used as a crosslinking agent for natural rubber, synthetic rubber, and thermoplastic polyolefins, this compound features a bifunctional structure. It is commonly employed as a crosslinker and initiator in applications such as silicone rubber, chlorosulfonated polyethylene, polyurethane, and EVA. Compared to products like 3M and di-tert-butyl peroxide, it offers superior processing safety and ease of handling. Moreover, vulcanized products made with this agent exhibit excellent physical properties and outstanding heat resistance. |
| First BIBP-40P |  |
Chemical composition: Dibutyl peroxy isopropylbenzene | Complex carrier: | Characteristics: Odorless crosslinking agents for natural rubber, synthetic rubber, and polyolefins; at equivalent levels of crosslinking, the amount of BIBP required is approximately two-thirds that of DCP. It offers excellent processing safety and produces finished products with minimal irritating odors. |
| First DCP-40P |  |
Chemical composition: Diisopropylbenzene Peroxide | Complex carrier: | Characteristics: A general-purpose crosslinking agent for natural rubber, synthetic rubber, and polyolefins; a white powder with excellent processing safety. However, products crosslinked with this agent tend to have a strong odor, which can be effectively reduced through secondary vulcanization. If low-odor performance is required, we recommend using BIBP (odorless DCP) instead. |
| First 101 (Double 25) - 50GE |  |
Chemical composition: 2,5-Dimethyl-2,5-bis(tert-butylperoxy)hexane | Complex carrier: | Characteristics: Used as a crosslinking agent for natural rubber, synthetic rubber, and thermoplastic polyolefins, it features a bifunctional structure. Commonly employed as a crosslinker and initiator in applications such as silicone rubber, chlorosulfonated polyethylene, polyurethane, and EVA. Compared to products like 3M and di-tert-butyl, it offers superior processing safety—no dusting, no leakage, and excellent handling characteristics. Moreover, vulcanized products made with this agent exhibit outstanding physical properties and exceptional heat resistance. |
| First BIBP-40GE |  |
Chemical composition: Dibutyl peroxy isopropylbenzene | Complex carrier: | Characteristics: Odorless crosslinking agents for natural rubber, synthetic rubber, and polyolefins; at equivalent crosslinking levels, the amount of BIBP required is approximately two-thirds that of DCP. This product is available as a pre-dispersed masterbatch, offering excellent processing safety—no dusting or leakage occurs during handling—and resulting in vulcanized products with minimal odor. |
| First DCP-40GE |  |
Chemical composition: Diisopropylbenzene Peroxide | Complex carrier: | Characteristics: A general-purpose crosslinking agent for natural rubber, synthetic rubber, and polyolefins; pre-dispersed masterbatch offering excellent processing safety—no dusting or leakage during handling. However, products crosslinked with this agent tend to have a strong odor, which can be effectively reduced only through secondary vulcanization. If low odor is required, we recommend using BIBP (odorless DCP) instead. |
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