COLOR CHANGING WEAR INDICATOR

摘要

A substrate with a color changing indicator to identify wear of the substrate is disclosed. The color changing indicator generally comprises a substrate having a working surface with a first color and a surface coating comprising a second color, different than the first color, dispersed in a binder. The surface coating covers the first color of the substrate and repeated use of the article wears away the surface coating causing exposure of the first color to indicate wearing of the substrate. Also disclosed, is a method of making an article including a color changing indicator.