META-KLEEN X-29 is a non-silicate, mildly alkaline soak cleaner for use with most aluminum alloys. It may be used as a non-etch and mild-etch cleaner as well as a soak cleaner for zinc die- castings and other reactive metals. META-KLEEN X-29 is ideal for the non-etch cleaning of aluminum prior to anodizing, chromating, bright dipping, electroless plating and electroplating. Since no silicates are present, no residual siliceous films remain to cause non-uniform anodized or conversion coatings, and no fluoride-containing acid dips are required to remove such films.