FORD WSS-M21P53-A1

Description / Abstract: FORD WSS-M21P53-A1, 2019 Edition, November 21, 2019 - FASTENER FINISH S453, HIGH TEMP, ZINC-RICH INORGANIC BASECOAT, ALUMINUM-RICH ORGANIC TOPCOAT, GRAY ***TO BE USED WITH FORD WSS-M99P1111-A***

The material defined by this specification is a high heat resistant coating for steel. It consists of an alkaline clean and mechanical (shot blast) pre-treatment followed by a zinc-rich basecoat and an aluminum-rich topcoat. The coating provides consistent friction for installation and aids in serviceability.