Cobalt 2-EthylHexanoate

• Cobalt octoate is a primary/active drier
• Cobalt drier is the most widely used drier in coating
• It is primarily an oxidation catalyst that acts on top of the coated film (Surface Drier)
• Cobalt octoate has a deep blue color, and if used at higher concentrations may affect the color of the paint
• Cobalt octoate prevents water vapor present in atmosphere from penetrating the paint film
• It is generally used in combination with other auxiliary and through driers
• Cobalt drier is usually added at 0.05 to 0.4 % based on vehicle solids
• It preferably should be added as near as possible to the end of the manufacturing process
• To prevent a very quick initial drying which would result in surface wrinkling, the dosage of cobalt drier should be chosen precisely
• It accelerates the catalytic effect of Methyl ethyl ketone (M.E.K.) Peroxide in polymerizing unsaturated polyester (UPR) resins.