Composites

Peroxyesters

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Product	Properties	Active oxygen %	Kick-off temp. (°C) *	Recommended Application
Peroxyesters (see structure)
Currently there is no product information available for the United States Luperox® DP10 (tert-butyl peroxyester)	Hot curing 60°C-100°C with cobalt accelerator. Pot life 4 hours to 4 days. A substitute for Luperox® 26 where storage and transport present a problem. Especially suitable for polymer concrete and artificial marble process system.	6.2	85	Polymer concrete Artificial marble
Luperox® P (tert-butyl peroxybenzoate)	For hot press molding temperatures between 130°C - 160°C. Suitable when high gloss surfaces are required. Also recommended for DAP resins.	8.1	85	Panels & sheets Hot molding SMC/BMC/DMC
Luperox® 26 (tert-butylperoxy- 2-ethylhexanoate)	Hot curing above 60°C often together with Luperox® P organic peroxides. Requires transport and storage below 15°C.	7.3	60	Pultrusion Hot molding SMC/BMC/DMC
Luperox® 26SR90 (tert-butylperoxy- 2-ethylhexanoate)	Activity as for Luperox® 26 organic peroxides but longer pot life in prepregs.	6.6	60	SMC/BMC/DMC

* Temperature at which reaction starts in the system composed only by resin and peroxide (no accelerator)

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