Better Painted Metal Substance is fully interactive substance which adapts into mesh specific Ambient Occlusion and Curvature maps.

There are several tweakable input parameters such as paint color, metal color, paint thickness, worn edges width, scratches scale, grunge scale and more.

This substance works very well in Substance Painter as a base material. Its possible to texture several objects automatically using this.

Both .sbs source file and .sbsar substance are included in the package.

Version 1.2 improvements include several improvements for better Curvature controls, adjustable paint scratches and ability to disable paint layer or edge wear completely.

Please see my other substances like this in Cubebrush.