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First Rubber S-80 is a pre-dispersed sulfur vulcanizing agent masterbatch with 80% sulfur content in an EPDM binder. It ensures rapid and uniform dispersion in natural and synthetic rubbers, preventing localized over-cure and sulfur blooming. Dust-free granules improve workplace safety and enable accurate automated feeding. Compatible with NR, SBR, BR, NBR, and EPDM. Recommended dosage: 0.5-5.0 phr.

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