ADDITIVE AA5 was developed to improve the quality of lime coatings on steel prior to drawing or cold forming. It is a concentrated liquid and is added directly to the lime bath in ratio to the weight of lime present.
The use of ADDITIVE AA5 will provide greater adhesion of lime to steel and increased penetration and coating on interior touching surfaces. More uniform, non-dusting lime coatings that provide increased lubrication and longer die life. Higher concentrations of lime are possible (up to 12% in some instances) which reduces multiple dipping for heavy lime coatings. ADDITIVE AA5 is used at the rate of 10-fl. oz. per 100 lbs. of lime in the bath (or 8 fl, oz. per 80 lbs.), and at the same rate for replenishment additions of lime.