Technical datasheet

Crystex™ OT 33

Supplied byFlexsys- Last Updated on Mar 18, 2026

Crystex™ OT 33 by Flexsys is a vulcanizing agent for unsaturated elastomers. At vulcanization temperatures, it de-polymerizes to soluble sulfur and behaves similarly to "Rubber Maker's" sulfur. It becomes soluble sulfur faster when mixed with alkaline products.
  • It is used in compounds containing a relatively large sulfur loading above the solubility of sulfur in the elastomer.
  • It is designed to prevent staining, blooming, and discoloration.
  • Crystex™ OT 33 offers critical dispersion in rubber.
  • It is suitable for the manufacture of tires and other plied-up rubber goods.
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Crystex™ OT 33 properties

Other properties

PropertiesValue & unitTest conditionTest method
Auto-ignition Temperature0.0 Visible After LoginVisible After LoginVisible After Login
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