Inventors:
James W. Martin - Pittsburgh PA, US
Henry T. Austin - Cheswick PA, US
Walter R. Stark - Holly MI, US
Gordon C. Schafer - Lapeer MI, US
Assignee:
PPG Industries Ohio, Inc. - Cleveland OH
International Classification:
B05D 700
Abstract:
Methods for inhibiting corrosion are disclosed. The methods generally involve contacting a coated metal substrate with a composition comprising one or more of yttrium, titanium and the rare-earth elements. The contacting step can be performed either before or after the coating is cured. Substrates treated according to the present methods are also disclosed.