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 Cobalt
Octoate |
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Calcium
Octoate |
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Lead Octoate |
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Zinc
Octoate |
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Zirconium
Octoate |
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Copper
Naphthenate |
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Barium
Octoate |
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Combination
Driers |
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Driers are compounds used in the paint industry to accelerate the change of the liquid paint to a solid film on the substrate that is being coated. These compounds cause drying through a chemical reaction between paint and air. This reaction starts once the paint is applied and hence exposed to air. The
drying process of coatings that dry by oxidation, such as those
based on air drying alkyd resins or drying oils, is characterized
by solvent evaporation followed by chemical reactions. These
result in oxidative cross linking and polymerization which causes
film formation and leads to the transition from a liquid to
a solid state. This cross linking is accelerated by the addition
of driers.
A majority of the commercial paint driers are metallic soaps. The most important drier metals are cobalt and manganese which are highly potent and provide extremely rapid drying of the surface of the film. They are generally used in combination with auxiliary driers that provide good through drying of the entire film. Chief among these are calcium, lead and zirconium. Zinc, copper, barium vanadium and iron are also used. The
metal used determines whether the drier will meet certain
basic requirements such as : 
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