Import Cm Rubber Vulcanizing Agent — Buy in Bulk from Supplier in China

CM Rubber Vulcanizing Agent, identified by CAS 51988-14-8, is a thiadiazole ester derivative used as a crosslinking agent for halogenated rubbers such as chlorinated polyethylene (CPE), chlorosulfonated polyethylene (CSM), and chlorohydrin rubber (ECO). The product appears as a light yellow powder with a purity of over 96% assay and greater than 99% pass rate through 320-mesh sieves. It is designed for high-efficiency vulcanization under low-temperature conditions.

The compound is insoluble in methanol, ethanol, and water, and only slightly soluble in acetone. Its melting point ranges from 165°C to 168°C, and moisture content is controlled below 0.30%. Ash content is less than 0.30%, indicating low inorganic residue. The product has a density of 1.46 in DMF and a shelf life of 12 months when stored sealed at room temperature. These physical properties ensure stable handling and consistent performance in rubber compounding.

This agent is widely used in cable sheathing, conveyor belts, and braided rubber hoses, particularly where high heat resistance and low compression set are required. The recommended dosage is 2.0 to 2.5 parts per hundred rubber (phr) with 1.5 phr of BF (NC) accelerator. Buyers should confirm compatibility with their specific rubber compound and vulcanization method, as performance varies with cure system and temperature profile.

Yantai Heng Nuo Chemical Technology Co., Ltd. is a chemical supplier based in Yantai, Shandong Province, China, with a registered address at No.32 Zhujiang Road, ETDZ. The company is verified as a harbor-tier supplier, indicating basic compliance with export documentation and shipping protocols. No manufacturing certifications, laboratory facilities, or production capacity details are disclosed in the listing.

The supplier does not claim ISO, REACH, or other regulatory certifications. No information is provided on R&D capabilities, workforce size, or client base. The product description suggests technical expertise in rubber additives, but the company’s role appears to be that of a producer or distributor without further substantiation. Buyers should request independent test reports and verify production source before large-scale procurement.