Metallography is a way of applying an inscription or image to metal . Only aluminum is implied. The surface of aluminum is anodized in such a way that the paint penetrates into the metal during application, which ensures high image stability, including in aggressive environments. The surface of the anodized aluminum on which the image is applied can be painted “silver”, “gold” or in other colors (yellow, green, blue, red, etc.) and have a different texture: matte, satin, glossy.
A metallographic method was developed in the 1980s for military needs.
The organic dye penetrates the upper porous layers of the aluminum alloy to a depth of 15-25 microns, and a transparent protective layer is applied over this colorful image, the density of which is close to the density of corundum.
Metallography allows you to get durable images that are superior in quality to printing . The developed technologies allow applying full-color images. Technical characteristics of metallographic products: image accuracy - up to 6500 dpi (dots per inch), raster images, resistance to aggressive influences - alkalis, salty mists, some types of acids, resistance to abrasion. The temperature range is from −193 to +537 ° C. The guaranteed life of the products according to the results of laboratory tests is 30 years.