Cobalt N / O / E
Cobalt based drier catalyzes the surfaces oxidation of varnish films. In view of the speed at which it acts cobalt drier should be added at the dilution stage.
The drier may be used alone, or combined with Lead, Manganese, or Zirconium driers.
In the Unsaturated Polyester Resin field, Cobalt drier promotes the polymerization reaction, in addition with organic peroxides, at room temperature.
In general, Cobalt drier and peroxides are added to the resin separately, just at the moment of the resin use.