High-quality dark markings on anodized aluminum
Anodized aluminum can be engraved very well and quickly with a laser. The anodized layer is removed and white marking is generated. This is particularly well suited for colored anodized coatings. In the case of natural anodized aluminum, however, this marking is not very clearly visible, and black marking is also of significantly higher quality. With a MOPA laser, natural anodized aluminum can be very nicely laser-marked in various gray tones up to a rich black. This process is also used to mark high-quality smartphones, among other applications.