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Stearic Acid Vulcanization Activator Raw Material for Rubber Industrial Chemical Production. Efficient vulcanization activator improves rubber cross-linking efficiency cooperates well with zinc oxide and accelerators. Excellent dispersing performance helps carbon black and other fillers distribute evenly inside rubber compound. Good softening and lubricating effect optimizes rubber mixing and molding processing performance. Stable acid value and low impurity reduce defective rate for finished rubber goods. Wide compatibility fits natural rubber SBR NBR EPDM and most synthetic rubber systems.