Nouryon Trigonox 21LS tert-butyl peroxy-2-ethylhexanoate 3006-82-4

Trigonox 21LS

tert-Butyl peroxy-2-ethylhexanoate

CAS Number: 3006-82-4

Physical form: liquid

Trigonox® 21LS is a peroxide formulation for curing unsaturated polyester resins at elevated and high temperatures.

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Trigonox® 21LS is a peracid ester formulation based on tert-butyl peroxy-2-ethylhexanoate for curing unsaturated polyester resins at elevated temperatures. Trigonox® 21LS is the preferred choice for UP resin based thermo compression molding formulations (SMC, DMC, BMC, etc.) cured in the temperature range of 120 - 160°C. Since Trigonox® 21LS is a highly reactive peroxide, it is ideally suited as a blowing agent in pultrusion molding and SMC/BMC formulations in combination with peroxides such as Trigonox® C and Trigonox® 29-B50. Compared to Trigonox® 21, Trigonox® 21LS has a longer shelf-life stability without compromising the curing speed, even when using iron oxide or carbon black as pigments.

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