Presently our shop as well as our suppliers provide black anodize but it always has a sheen to it. Roughing the surface doesn't provide consistant results and seems to degrade the anodize process.
Smooth surfaces are reflective.
To a lessor extend I would like such a coating for steel parts but the aluminum parts are more needed. Anodize coatings are also thermally and electrically insulative. I would like such a coating to be conductive. Presently our shop as well as our suppliers provide black anodize but it always has a sheen to it. Roughing the surface doesn't provide consistant results and seems to degrade the anodize process.