Dye absorption product is a clear passivation coating for parts having electroplated zinc deposits. Designated Aldokote TCL, the formulation is a two-part system, based on the trivalent chromium salts (replacing hazardous hexavalent-based compounds) which gives a clear chromate with excellent adsorption performance for organic dyes of various colors. Further, the product is used at room temperature, so the working solution and parameters are easy to maintain. The bath is suitable for both rack and barrel applications. Importantly, the new passivation coating is said to be able to provide 72-96 hours white corrosion protection in neutral salt spray tests; enhanced protection can be achieved with an appropriate sealant.