Chromating is a surface treatment process for aluminum in which a thin conversion layer is applied. This layer protects the metal from corrosion, maintains electrical conductivity and improves adhesion for subsequent coatings such as paint or powder coating.
What is chromating?
September 25, 2024
What is chromating?
September 25, 2024
Chromating is a surface treatment process for aluminum in which a thin conversion layer is applied. This layer protects the metal from corrosion, maintains electrical conductivity and improves adhesion for subsequent coatings such as paint or powder coating.

October 10, 2025
Across generations: Precision connects - Diener & Rapp / 3RM und Hauser Präzisionsdrehteile
The cooperation with Hauser Präzisionsdrehteile is much more than just a business relationship for us - it...

September 12, 2025
Successful partnership with Spitzdruck
At 3RM, we attach great importance to reliable and long-term partnerships. That is why we are pleased to...

August 4, 2025
Schlötter and 3RM set standards in aluminum passivation
In the world of surface technology, innovation, sustainability and trust based on partnership are what count. This is precisely why we...
What is chromating?
Chromating is a surface treatment process for aluminum in which a thin conversion layer is applied. This layer protects the metal from corrosion, maintains electrical conductivity and improves adhesion for subsequent coatings such as paint or powder coating.
Further FAQs on Chromating...
Can a surface be further processed after chromating?
Yes, chromated surfaces are ideal for the Further processing suitable - in fact, this is one of its main functions. The conversion layer improves the Adhesive properties of the metal surface and thus creates a Ideal base for painting, powder coating or adhesive bonding.
The chromate layer ensures that coatings adhere evenly and do not peel off under thermal or mechanical stress. Especially for components that are to be painted or coated, chromating is a proven standard in industrial pre-treatment - efficient, material-saving and reliable.
What is the difference between chromating and anodizing?
Chromating creates a very thin, conductive protective layer, while anodizing creates a thicker, non-conductive oxide layer. Chromating is particularly suitable when good electrical conductivity or paint pre-treatment is required. Anodizing offers particularly high corrosion protection and a wide range of colour options.
What is chromating?
Chromating is a surface treatment process for aluminum in which a thin conversion layer is applied. This layer protects the metal from corrosion, maintains electrical conductivity and improves adhesion for subsequent coatings such as paint or powder coating.


