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US 5,669,945 AGranted
Abrasive blast media containing corrosion inhibitor
AssigneeChurch & Dwight Co., Inc.
InventorBenny S. Yam
Life of this patent
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Abstract
A blast media is provided for cleaning a metal surface by wet blasting and which comprises a particulate abrasive such as sodium bicarbonate and a corrosion inhibitor comprising an alkali metal phosphate. The corrosion inhibitor has been found to greatly reduce the discoloration of metals which have been wet blasted with alkaline salt abrasives.
Claims19
A blast media for cleaning a metal surface by wet blasting comprising particles of an abrasive and a water soluble corrosion inhibitor comprising an alkali metal phosphate.
Dependencies are inferred from the claim text.