Product Description

Butanox® HBO-50 is a methyl ethyl ketone peroxide (MEKP) supplied in dimethyl phthalate, used for curing unsaturated polyester resins in the presence of a cobalt accelerator at room and elevated temperatures, for example in the production of corrugated sheets. The Butanox® HBO-50/cobalt accelerator curing system is particularly suitable for curing laminating resins and lacquers when a faster gelation and initial cure speed is required than can be obtained with Butanox® M-50. In addition, the manufacture of light-resistant parts may be possible, in contrast with a benzoyl peroxide/amine curing system.

CAS Number	Total active oxygen
1338-23-4	9.8-10.0 %
Appearance	EINECS/ELINCS
Clear colorless liquid	No.215-661-2
TSCA status
Listed on inventory
Characteristics
Density, 25°C	1.180 g/cm³
Viscosity, 20°C	19 mPa.s
Application
● Curing of unsaturated polyester resins with a cobalt accelerator, room and elevated temperature ● Laminating resins and lacquers requiring faster gelation and initial cure than Butanox® M-50 ● Corrugated sheet production ● Light-resistant parts (as an alternative to benzoyl peroxide/amine curing)