Matting
Matting. The process of minutely roughing up a metallic surface by abrasive blasting, matte dip or matting tools; a frequent process of chasing or finishing. A dull matte finish can be indicated somewhat by lacquering, applying only a light coating of lacquer to a slightly heated medallic item. The action by the operator in any stage of creating a matte surface is called matting down.
excerpted with permission from
An Encyclopedia of Coin and Medal Technology
For Artists, Makers, Collectors and Curators
COMPILED AND WRITTEN BY D. WAYNE JOHNSON
Roger W. Burdette, Editor