Non-metallic metal

Non-metallic metal, usually shortened to NMM, is a painting technique where armor, blades or other metal parts are painted using regular non-metallic colors, blues, yellows, greys, arranged in sharp bands of light and dark rather than actual metallic pigment. Done well, the human eye reads the strong contrast and reflected color as a shiny metal surface even though no literal metallic flake is used.

Painters use this technique because metallic paints can look flat or grainy at very small scale, and because NMM allows more control over exactly where highlights and reflections sit, including reflecting nearby colors like a red cloak or green grass onto a sword blade for a more integrated, painterly look. It is considered one of the more advanced techniques in the hobby and is often used to make a single showcase model stand out.

NMM demands strong color theory knowledge and confident, sharp edge highlighting, since the effect depends on crisp light-to-dark transitions rather than soft blending. It is time-intensive and usually impractical for painting a full army, which is why most painters reserve it for centerpiece models rather than every unit on the table.