WELDABLE, COATED METAL SUBSTRATES AND METHODS FOR PREPARING AND INHIBITING CORROSION OF THE SAME

摘要

The present invention provides a weldable, coated metal substrate, the surface of which is pretreated with a Group IIIB or IVB metal compound or mixtures thereof; and a weldable coating containing an electroconductive pigment dispersed throughout a binder deposited upon at least a portion of the pretreatment coating composition.