Process for improving steel-epoxy adhesion

Details Process for improving steel-epoxy adhesion Process for improving steel-epoxy adhesion

B - Operations, Transporting

05

D

117/95

B05D 3/10 (2006.01) B32B 15/08 (2006.01) C08J 5/12 (2006.01)

Patent

CA 1197151

PROCESS FOR IMPROVING STEEL-EPOXY ADHESION Abstract of the Disclosure The present invention is directed to a method for improving the adhesion of epoxy resins to steel substrates which comprises first removing the oxide surface layer, preferably by chemical means, and then pretreating the substrate with a solution of at least one coupling agent selected from the group consisting of .beta.-diketones and mercaptoesters. The invention also provides a method for improving the adhesion of epoxy resins to steel substrates by pretreating with citric acid or a salt thereof.

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