Cleaning and polishing rusted iron-containing surfaces
AssigneePP6 Industries Ohio, Inc.
InventorsMichael J. Pawlik, Robin M. Peffer
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Abstract
A method for cleaning and polishing a rusted iron-containing metal surface is disclosed. The metal surface is contacted with a composition containing fluorometallate anions of a Group IVB metal.
Claims21
A method of removing rust from a rusted iron-containing metal surface comprising removing rust from the iron-containing metal surface by contacting the surface with a composition comprising fluorometallate anions of a Group IVB metal in which Group IVB metallate is present in an amount of 20 to 80 percent by weight based on total weight of the composition.
A method for removing rust from a rusted steel fastener comprising removing rust from the rusted steel fastener by contacting the fastener with an aqueous solution containing fluorozirconate anions and hydrogen cations in which fluorozirconate is present in an amount of 20 to 80 percent by weight based on total weight of the composition.
Dependencies are inferred from the claim text.