Pentox

Pentox 40 is peroxide initiator for copolymerization of unsaturated resins polyester. They are mainly used with cobalt accelerators at temperature surroundings. These initiators are particularly suitable in those applications where it is required fast molding with transfer of the core, for example cold forming or in injection molding techniques. Compared to the Metox-50 hardener, they contain a lower amount of active oxygen. However, they show a similar one gel time and a greater exothermic effect, therefore, they are not recommended for use in production too thick layers in one operation, as well as for hardening gel coats.