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| Name | Exterior view | Chemical composition | Complex carrier | Characteristics |
|---|---|---|---|---|
| First BIPB-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 LF-36 Speciality Mobile Dispersant |  |
Chemical composition: A combination of saturated fatty acids, fatty acid soap salts, and fatty acid amides | Complex carrier: | Characteristics: Reduces the Mooney viscosity of the compound, shortening mixing time and saving energy. Enhances the extrusion rate of the rubber compound, making it easier to demold products with smooth, even surfaces. Eliminates the sticky roller phenomenon commonly observed during open-mill mixing. Increases extrusion and injection output, boosting overall production capacity. Importantly, it has no adverse effects on vulcanization speed or the physical properties of the rubber compound. Suitable for specialty polar rubbers such as FKM, ACM, AEM, ECO, EO, CSM, and HNBR. |
| First LF-34 Universal Flowing Dispersant |  |
Chemical composition: A combination of advanced fatty acids, fatty acid esters, fatty acid soap salts, and waxes | Complex carrier: | Characteristics: As a versatile flow agent, it is particularly well-suited for internal mixing processes and can be used effectively in NR, SBR, BR, NBR, EPDM, and other rubber compounds. It significantly improves the Mooney viscosity of raw rubber, lowers the internal mixer temperature during compounding, reduces energy consumption, and prevents premature scorching. Additionally, it enhances the roll sticking properties of the compound, minimizes die swell during extrusion, and boosts the smoothness of the final product surface. This results in increased output from injection and extrusion processes, fewer defective products, and a lower overall production defect rate—without negatively impacting vulcanization speed or the physical properties of the rubber compound. |
| First LF-33 Extrusion-Specific Dispersant |  |
Chemical composition: A combination of saturated fatty acids, fatty acid soap salts, and fatty acid amides | Complex carrier: | Characteristics: As a flow dispersant, it is particularly well-suited for mixing processes in internal mixers and can be used with both natural and synthetic rubbers, including NR, SBR, BR, NBR, EPDM, and more—especially effective with EPDM. This product helps reduce the Mooney viscosity of the compound, lowering processing temperatures during mixing and preventing premature scorching. It also enhances the processability of the rubber compound, reducing extrusion swell and resulting in smoother product surfaces. Additionally, it increases output rates for injection and extrusion processes, minimizes defects, and lowers overall production scrap rates—all without negatively impacting the curing speed or the final physical properties of the rubber compound. |
| First LF-32 White Carbon Black Dispersant |  |
Chemical composition: A combination of fatty acids, fatty acid soaps, and fatty acid esters | Complex carrier: | Characteristics: During the mixing process, it effectively prevents the aggregation of silica, which could lead to uneven dispersion, thereby significantly enhancing the dispersibility of silica. It exhibits excellent wetting and dispersing properties for fillers like silica, promoting better processability during operations such as calendering and extrusion. Importantly, it has no adverse effects on the vulcanization rate or physical properties of the rubber compound, making it suitable for use in both natural and synthetic rubbers. |
| First IS90-80 |  |
Chemical composition: Insoluble sulfur | Complex carrier: EPDM/SBR | Characteristics: It serves as a vulcanizing agent for both natural and synthetic rubber; offering superior thermal stability, it helps prevent sulfur migration during processing and storage, while also reducing the tendency of accelerators (such as thiazoles) to cause "sulfur blooming." Additionally, it enhances the adhesion between the rubber compound and other reinforcing materials. This product is suitable for applications in tires, hoses, belts, footwear, and various industrial products. |
| First MAC-1489 |  |
Chemical composition: Highly Effective Anti-Yellowing Promoter | Complex carrier: EPDM | Characteristics: Outstanding yellowing resistance, achieving grades 4.0 to 5 under stable conditions with other ingredients in the formulation; exhibits a moderate vulcanization speed, resulting in wear resistance, tensile strength, and tear resistance that are comparable to those of standard accelerator-enhanced products. Additionally, it is free from contamination and discoloration, ensuring consistent color stability in rubber products—particularly making it ideal for use in rubber shoe soles. This product also boasts excellent scorch resistance when compounded into rubber, allowing it to remain stable at room temperature for 3–5 days, thus overcoming the common issue of short scorch times associated with conventional yellowing-resistant accelerators. It is primarily used in white and light-colored rubber shoe soles, as well as other rubber products. |
| First EM33-75 |  |
Chemical composition: EPDM Comprehensive Accelerator | Complex carrier: EPDM | Characteristics: A comprehensive accelerator specifically designed for EPDM, offering high vulcanization efficiency and excellent vulcanization flatness. It can be used alone or combined with ZDBC and ZDEC for even faster curing rates. This product is non-staining, does not cause discoloration, and disperses easily, making it ideal for white or light-colored rubber products. It is commonly employed in EPDM-based sealing strips, hoses, molded components, and other similar applications. |
| First MAC-3108 |  |
Chemical composition: Environmentally friendly, highly efficient promoter without a thiazole structure | Complex carrier: EPDM/SBR | Characteristics: A comprehensive eco-friendly accelerator suitable for NR, SBR, BR, EPDM, IIR, and other rubbers; it can be used as the primary accelerator on its own or combined with small amounts of TBzTD-75, ZBEC-75, ZDTP-50, and other components to create an environmentally friendly vulcanization system. This system delivers rapid curing speeds while completely eliminating the thiourea structure, ensuring a non-bitter taste. Importantly, no nitrosamine carcinogens are produced during the vulcanization process. During storage, the product may gradually change from pale yellow to gray, though it remains non-staining to rubber. |
| First ZBEC (ZTC)-75 |  |
Chemical composition: Zinc dibenzyl dithiocarbamate | Complex carrier: EPDM | Characteristics: An ultrafast accelerator for synthetic rubbers such as NR, EPDM, IR, SBR, NBR, and IIR; it belongs to the class of secondary amine dithiocarbamate accelerators and does not generate nitrosamines during vulcanization. Typically used in conjunction with products like TBBS-80 and TBzTD-75, it forms an environmentally friendly vulcanization system. Among all zinc dithiocarbamate accelerators, this one exhibits the best scorch resistance. |
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