Anodising

In addition to mechanical engineering, aviation and medical technology, the electronics, construction and consumer goods industries also benefit from the advantages of anodizing. BWB also creates anodized works of art that explore the limits of the anodizing process.

Yes, the size and shape of the parts can be influenced by the capacity of the anodizing baths and the uniformity of the layer formation.
BWB has anodizing baths up to 22 meters long. The exact product windows for the individual processes can be found in our range of services.

BWB offers a wide range of surface technology processes at 12 locations. Our specialized plants have market-specific certifications for medical technology (ISO13485) and aviation (EN9100, Nadcap). We also offer exclusive coating processes such as Ematal and Heloxal, which offer outstanding properties.

No, anodizing is a process that is used exclusively on aluminum. However, steel can be protected against corrosion by other processes, such as electroless nickel plating. You can find an overview of this in our range of services under electroplating processes.
Steel elements can be wet-painted for a visual surface finish.

Anodizing and Anodising are terms that are often used interchangeably and describe an electrochemical process in which a protective oxide layer is created on aluminium surfaces. This process serves both decorative and functional purposes, such as corrosion protection and coloring. Typical layer thicknesses for anodizing are between 5 and 25 micrometres.

Hard anodizing is a special form of anodizing in which a significantly thicker and harder oxide layer is produced. This coating offers improved wear resistance and is mainly used for industrial applications where high demands are placed on material resistance. The layer thickness during hard anodizing can be up to 150 micrometres.

Ematalizing, also known as ematal Anodising, is a special form of anodizing. During ematalization, a particularly compact protective layer is created in an electrolyte containing titanium. Ematal is used when friction is to be minimized by mechanical contact (e.g. in plain bearings), by a flowing medium (e.g. valve bodies and nozzles for gases or liquids) or a combination of these (in pneumatics and hydraulics).
With its plant in Schlieren, BWB has a proven competence center for ematal and hard ematal coatings.

Bilatal Anodising is a special form of anodizing. Bilatal Anodising produces an oxide layer that is characterized by low residual reflection in the UV wave range. In addition to its outstanding optical properties, the Bilatal coating also impresses with its low outgassing behavior and good wear resistance. A Bilatal coating of aluminum components reduces wear and can improve the measurement results of sensitive precision mechanical-optical devices.