COLORBOND® MATT Steel is intelligently designed with a matt finish featuring a gloss unit of less than 10, to drastically reduce specular reflection. There are two kinds of light reflection - specular reflection and diffuse reflection. A specular reflection occurs when light is reflected in a concentrated, mirror-like manner, while a diffuse reflection is a scattered and unfocused reflection of light. Utilizing BlueScope's innovative matt paint technology, the COLORBOND® Matt features a softer, more subtle look in a range of COLORBOND® steel's colours.