Description OF-7 is a polymeric alkyl phenol disulfide, contains unique sulfur donors in the molecular structure, can vulcanize rubber in heated state, � typically used as nitrosamine-free environment-friendly sulfur donating body in the rubber compound formulations, can give excellent mechanical properties, heat aging resistance, excellent dynamic fatigue properties and good operational safety performance. Application OF-7� contains unique sulfur donors, can� vulcanize rubber in heated state, giving non-blooming, high tensile strength, excellent heat resistance and dynamic fatigue properties, used� as� sulfur donor type vulcanizing agent� for NR/SR. For the co-vulcanization� of different polar rubber, such as NR, CIIR, IIR and EPDM, it provides excellent performance. Can be used in tires, gaskets, belts, automotive hose, damping products.� Because containing� alkylphenol� groups,� it has� also excellent tackifying and antioxidant effects. Not producing� nitrosamines toxic gas� during vulcanization, it is an environmentally friendly additive. Reference dosage 0.5-5 phr. Package and Storage In paper/plastic combined sack with inner film bag, 25 kg net each. Store indoor, drying and ventilating, shelf-life 18 months.