Auxiliary drier

Bismuth. Bismuth 2-ethyIhexanoate [72877-97-5] is an auxiliary drier that has been promoted for drying under adverse conditions. Like rare earths, in some coatings it is reported to give better results than zirconium at low temperature and high humidity. 

Calcium naphthenate n. Calcium salt of naphthenic acids. Used as an auxiliary drier, dispersing and stabilizing aid. 

Zirconium driers n. Zirconium salts of various organic acids such as naphthenic or 2-ethyl hexoic. Used as a replacement for lead in fiime-proof paints or other lead-free paints, where equivalent through drying can be obtained. It is also used as an auxiliary drier where color and color retention are important. 

A combination of primary and auxiliary driers is often used to achieve optimum curing with the minimum drier dose. Some optimized combinations are sold as mixed driers. Most driers are added in the let-down stage of paint manufacturing, except for auxiliary driers such as zinc and calcium that are generally added to the mill base due to their effectiveness as wetting and dispersing agents. 

Calcium Octoate n Calcium salt of 2-ethyl hexoic acid. Used as auxiliary drier, dispersing, and stabilizing aid. 

Calcium Resinate n Calcium salt of rosin used as auxiliary drier and dispersing and stabilizing aid. Commonly known as Limed Rosin, which is really rosin, the acidity of which has been substantially neutralized. 

Zinc Drier n Zinc salts of acids generally used for driers, such as naphthenic or 2-ethyl hexoic, are not driers. However, when used with driers such as cobalt it often prevents wrinkling and skinning. It acts as an auxiliary drier. 

---