Blender RR metal color material library holds all colors of RR metallic paint chart. This Blender RR metal color shader is completely procedural so there is no tiling for this amazing metal color shader.
Blender RR metal color list:
RR 20, RR 21, RR 22, RR 23, RR 24, RR 25, RR 26, RR 27, RR 28, RR 29, RR 30, RR 31, RR 32, RR 33, RR 34, RR 35, RR 36, RR 37, RR 38, RR 39, RR 40, RR 41, RR 750.