The Universal Selection Source:
Polymer Additives
by SpecialChem
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Varox® DBPH-50

Varox® DBPH-50 by R T Vanderbilt is a 2,5-dimethyl-2,5-di(t-butylperoxy)hexane. Used for the vulcanization or cross-linking of most elastomers and polyolefins such as EPDM, EPM, and PE. 45.0 to 48.0% assay on an inert carrier. It is insoluble in cold water.
Product Type
  • Vulcanizing Agents
  • Crosslinkers / Curing Agents / Hardeners
Chemical Composition
CAS Number
Physical Form
White to off-white
Product Status
Applications/ Recommended for
  • Other Rubber > EPM (or EVM)
  • Other Rubber > EPDM
  • PE
Bio Based
Labels/Agency Rating
TSCA, Europe inventory, Canada inventory, AICS, IECSC, Japan inventory, Korea inventory, NZIoC, PICCS
SpecialChem additionnal informations based on CAS Number : 78-63-7

Hansen Solubility Parameters

[14.7, 5.4, 3]
[δD - Dispersion force interactions, δP - Polar force interactions, δH - Hydrogen bond force interactions]

Please note, these HSP values are estimations. It is based upon the “like seeks like” principle. It splits an ingredients interactions into three parameters; δD (Dispersion force interactions), δP (Polar forces interactions) and δH (Hydrogen bond force interactions). Hansen Solubility Parameters can help you find a wide range of products that are predicted to be compatible with Varox® DBPH-50. A practical determination of these HSP values would provide higher certainty. Learn More.

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