Advanced Organics
We Put Metals Where They Need To Be
Coatings & Inks
Driers for Paints
Calcium
Since calcium has little drying action in itself but is very useful in combination with active driers, it is known as an auxiliary drier.
In vehicles that show poor tolerance for lead, it is possible to replace part of the lead with a larger amount of calcium to prevent the precipitation of the lead and maintain drying efficiency. Calcium is often used to replace lead where the toxicity of lead must be avoided. For example: toy enamels, baby furniture finishes and sanitary finishes. Calcium driers are also useful as pigment wetting and dispersing agents and help to improve hardness and gloss and reduce "silking." When ground with drier adsorbing pigments, calcium minimizes loss-of-dry by being preferentially absorbed.
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