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.
appliance
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.