Chemelyne Sppecialities Sampla, Rohtak, Haryana

Manganese promotes both 'surface dry' and 'through dry', although it is less efficient then cobalt and lead in air drying finishes. In baking finishes manganese is superior to cobalt as it does not cause imbrutement. Manganese also gives better result than cobalt in low temperature drying performance and does not suffer from wrinkling under high humidity conditions. However, manganese is rarely used along but added as a modifier, with cobalt being use as a primary drier. Manganese generally imparts a pinkyellow color to white enamels and hence is best avoided in such finishes. In some systems such as urethane oils, use of manganese in preference to cobalt results in reduced 'skinning' problems.