Import Alkylphenol Disulfide Rubber Vulcanizing Agent — Buy in wholesale FOB from Supplier in China

OF-7 is a polymeric alkylphenol disulfide rubber vulcanizing agent manufactured by Shanxi Oriental Faith Technology Co., Ltd. in Taiyuan, Shanxi Province, China. The product contains unique sulfur donors in its molecular structure, enabling rubber vulcanization in heated state without generating nitrosamine toxic gases. It is supplied in paper and plastic combined sacks with inner film bags, each holding 25 kg net weight, with a stated shelf life of 18 months under dry, ventilated indoor storage. The reference dosage range is 0.5 to 5 phr (parts per hundred rubber), allowing compounders flexibility across different formulation requirements.

The active sulfur content in OF-7 derives from its polymeric alkyl phenol disulfide backbone, which decomposes thermally to release sulfur for crosslinking. The alkylphenol groups confer secondary benefits of tackification and antioxidant protection, reducing the need for separate additives in certain formulations. Typical polymeric sulfur donors of this class exhibit sulfur contents in the range of 30-45% by weight, though buyers should request the specific sulfur assay for this grade. The product is designed for use with natural rubber (NR) and synthetic rubbers (SR), including polar elastomers such as chlorinated isobutylene-isoprene rubber (CIIR), isobutylene-isoprene rubber (IIR), and ethylene-propylene-diene monomer rubber (EPDM).

OF-7 finds application in tire compounds, gaskets, conveyor belts, automotive hoses, and vibration damping products where heat buildup and dynamic stress are concerns. Its non-blooming character ensures surface cleanliness in finished goods, while the excellent dynamic fatigue resistance suits it to flexing applications. Compounders in the automotive and industrial rubber sectors are the primary buyers. For import, confirm with Shanxi Oriental Faith Technology Co., Ltd. the minimum order quantity, available Incoterms, and whether technical data sheets and material safety data sheets accompany the shipment.

Shanxi Oriental Faith Technology Co., Ltd. is headquartered at Torch Undertaking Plaza, No. 306 Changzhi Road, Taiyuan, Shanxi Province, China, postal code 030000. The company holds a harbor trust tier on the platform, with a response rate currently showing as 0.00% and an average response time of 0 hours, indicating limited active engagement data is available. The supplier specialises in rubber chemical additives, with OF-7 representing its polymeric alkylphenol disulfide vulcanizing agent offering for nitrosamine-free compounding.

The listing provides product-level technical description but does not state specific factory certifications, production capacity, export licence details, or years in operation. Buyers should request a company profile, ISO certification status, and quality management documentation directly from the supplier. Given the location in Taiyuan, a major industrial centre in northern China, proximity to coal-chemical feedstocks may support phenolic derivative production, though this is an inference buyers should verify rather than assume.