Accelerator 55028N

Product Line Polymer additives

Accelerator™ 55028N is an cobalt accelerator for curing UP resins.

  • Brand

  • Chemical family

    Metal accelerator
  • CAS number

    136-52-7, 2457-01-4
  • Physical form

  • Regional availability

    Africa, Europe, India, Middle East
  • Chemical name

    Cobalt(II) 2-ethylhexanoate and barium carboxylate
  • Applications

    The curing of unsaturated polyester resins at ambient temperatures can in general not be performed by an organic peroxide alone. The radical formation, which is necessary to start the polymerization reaction, is at ambient temperatures with most generally applied organic peroxides too slow. To speed up the radical formation in a controllable way organic peroxides must therefore be used in combination with a socalled accelerator. For ketone peroxides like methyl ethyl ketone peroxides, cyclohexanone peroxides and acetylacetone peroxide a cobalt accelerator must be used.

Market Segments

Thermoset composites

Detailed description

Accelerator™ 55028N is an cobalt accelerator in aliphatic solvent mixture for curing UP resins at ambient temperatures. Recommended when using Aluminum Trihydrate (ATH) fillers.


  • Accelerator


  • Engineered Stone,
  • Gelcoats,
  • Buttons,
  • Continuous Laminating,
  • Resin Transfer Molding,
  • Filament winding,
  • Vinylesters,
  • Hand lay-up & spray-up
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Get in touch!

For more information about Accelerator 55028N, please contact our technical experts. We look forward to hearing from you.

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