Abstract: Disclosed is a process for reducing the rate of sludge formation in a crystalline phosphatizing process. The phosphatizing bath includes 0.005 to 20 g/l of a phosphoric acid ester of an organic condensation product containing an alkylene oxide chain.

Abstract: Disclosed is a process for applying a tannin containing post-treatment composition over zinc phosphate conversion coatings on metallic surfaces so as to provide an improved base for paint, lacquer, varnish, or similar organic finishes. Also disclosed are a process for the transport and application of the tannin composition and a process for preparing a metallic surface for electrodeposition painting.

Abstract: Disclosed is a method and composition useful for stripping paint films. The stripping composition is phenolfree and contains a synergistic combination of amine compounds in an aqueous alkaline solution and stripping is effected by contacting the surface with the solution.

Abstract: Aluminum surfaces are cleaned at low temperature by the addition of a polyalkylene glycol-abietic acid surfactant and a polyalkylene glycol-hydrocarbon surfactant to an aqueous acidic solution. Preferably, the solution contains fluoride as an accelerator.

Abstract: Disclosed is a method and composition useful for etching steel prior to metal plating which can be followed by enamelling. The etching composition contains sodium benzene sulphinate and an acid and promotes adhesion of metal and enamel coatings applied over the etched surface.

Abstract: Disclosed is a composition and method for its use to improve the corrosion resistance of conversion-coated metal surfaces. The composition contains a myo-inositol phosphate ester or soluble salt thereof and is applied as a rinse of the conversion coating.

Abstract: Disclosed is a stable organic phase coating composition useful for treating a metallic surface prior to non-cutting cold forming which contains from 0.5 to 10 weight % water, from 30 to 94 weight % of an organic lubricant and from 5 to 60 weight % of the reaction product obtained by reacting the salt of a multivalent metal cation, a polyphosphoric acid, and an alcohol of 10 to 36 carbon atoms in a weight ratio of metallic cation: P.sub.2 O.sub.5 equivalent: alcohol of 1:3-60: 14-150. A major advantage of using this composition to form the lubricant coating on the metallic surface is that the lubricating layer may be applied in a single step instead of by a two-step process as in the past.