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.