Cobalt accelerator

Cobalt accelerators are perhaps the most widely used accelerators and are used in MEKP, CHP and ACP hardeners. A cobalt accelerator is a deep violet liquid (metal). When the accelerator is added, in combination with a peroxide, it starts the formation of radicals, which accelerates curing. Cobalt accelerators have little effect on the colour of the final product, do not give stability problems, no discolouration by UV light and have little effect on air inhibition in the resin after incorporation of curing agents. Cobalt accelerators, on the other hand, are sensitive to moisture and influences of fillers and pigments.