FORD WSS-M21P46-A1

Description / Abstract: FORD WSS-M21P46-A1, 2011 Edition, February 25, 2011 - CORROSION PROTECTIVE COATING, ELECTRO PLATED ZINC IRON ALLOY, TRIVALENT PASSIVATE WITH WATERBORNE TOP COAT, BLACK ***TO BE USED WITH FORD WSS-M99P1111-A***

The materials defined by this specification are corrosion protective coatings applied sequentially per supplier specifications over steel. They consist of an alkaline zinc iron alloy electrodeposit and a trivalent chromium passivate/tie coat followed by an waterborne inorganic top coat. When used with an integrated torque modified, the processes provide consistent torque-tension control.

All processes are free of hexavalent chromium, lead and cadmium.