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ECC 1684 is supplied as a concentrate and is diluted with water for its intended use. A 15% concentration in water has been found to be optimum for cleaning E-Coat sludges from car carriers. The use concentration depends on the severity of buildup, temperature of the cleaning solution, and the time allotted for cleaning. Raising the temperature and increasing the concentration of an ECC 1684 solution lowers the time required for cleaning. |