At the end of 168 hours exposure to the 5 percent salt spray test specified in 4 5.1 , specimen panels (see 4 3.3) treated with the applicable class of coat1ng shall meet all of the followlng corrosion resistance requirements. 3 问 IL-C-5541E a. No more than 5 isolated spots or ...
5541, Class 1A or Class 3. Chem film is a water dilute solution that coats a hexavalent chromium gel on the aluminum surface, with or without color, to form a surface corrosion resistant film when dried. It is usually specified either "clear," meaning no color (the gold color is post ...
1. SCOPE MILITARY SPECIFICATION |阳阳阳A盯川S S ENSITIVE MIL-C-5541E 3o November 1990 SUPERSEDI NG MIL-C-5541D 28 February 1989 CHEMICAL CONVERSION COATINGS ON ALUMINU问 AND ALUMINUM ALLOYS This specificat10n is approved for use by a11 Departments and Agenc1es of the Department of Defense...