Technical datasheet

Norox® CHP-90

Supplied byUnited Initiators- Last Updated on Nov 19, 2025

Norox® CHP-90 by United Initiators is an economical free-radical initiator for unsaturated polyester resins, vinyl monomers, and styrenation of oils and alkyds.
  • It is suitable for systems at both ambient and elevated temperatures.
  • It can minimize crazing and cracking in thick cross-section areas.
  • Norox® CHP-90 is used in the blend to lengthen the cure time without diminishing the ultimate cure.
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Norox® CHP-90 properties

Other properties

PropertiesValue & unitTest conditionTest method
Cumyl Hydroperoxide0.0 Visible After LoginVisible After LoginVisible After Login
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Density0.0 Visible After LoginVisible After LoginVisible After Login
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Molecular Weight, Mw0.0 Visible After LoginVisible After LoginVisible After Login
Specific Gravity0.0 Visible After LoginVisible After LoginVisible After Login
Vapor Pressure0.0 Visible After LoginVisible After LoginVisible After Login
Solubility PropertiesElementConditionMethod
Slightly Soluble inVisible After Login
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