Abstract: Prevention of flash rusting of iron-containing substrates is achieved by contacting the substrates with aqueous solutions containing carbonate and/or bicarbonate salts. The treatment process can be effected during cleaning of the substrates with an aqueous alkaline cleaner or during a post cleaning step such as during rinsing of the substrates subsequent to cleaning.
Type:
Grant
Filed:
February 6, 1996
Date of Patent:
December 29, 1998
Assignee:
Church & Dwight Inc.
Inventors:
Steven Dunn, Steven A. Bolkan, Francis Cala, Anthony Winston