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Trigonox® 21S

Technical Datasheet | Supplied by Nouryon
Trigonox® 21S by Nouryon is tert-butyl peroxy-2-ethylhexanoate. Used as a curing agent for unsaturated polyester resins. Being thermally unstable substance, it may undergo self-accelerating decomposition. Trigonox® 21S can be used in acrylates, acrylic resins, cured in place pipe (CIPP), engineering plastics, GPPS, In situ pipe renovation, pultrusion, solvent borne acrylics, styrenic (co)polymers, toner Resins and water-borne acrylics.
Product Type
  • Polymerization Initiators / Inhibitors / Catalysts > Polymerization initiators
  • Crosslinkers / Curing Agents / Hardeners > Organic Peroxides
  • Crosslinking Catalysts / Accelerators / Initiators > Organic Peroxides
Chemical Composition
tert-Butyl peroxy-2-ethylhexanoate
CAS Number

Compatiblity with other products

Find products that are predicted to be compatible with Trigonox® 21S.

This list of compatible products is generated out of estimated HSP values. A practical determination of these HSP values would provide higher certainty.
Learn more about Hansen Solubility Parameters (HSP) and their use in predictive formulation.

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