Chromating aluminum
Chromating aluminum is a proven surface treatment process in which a special chromate layer is applied to the metal. This layer reliably protects the aluminum from corrosion and at the same time improves adhesion for subsequent coatings such as lacquers or paints. Depending on requirements, the chromate coating can be colorless or in a typical yellow tone. The process meets modern environmental standards and is firmly established in many areas of industry - particularly in the automotive, aerospace and electronics manufacturing sectors.
Chromating in the nanometer range
Fine protective layer
Colorless or yellowish - for reliable corrosion protection and best adhesion with high environmental compatibility.
Low resistance with SurTec 650
Protects, guides, holds.
The conductive chromate layer extends the service life and improves adhesion for paint and varnish.
REACH-compliant and future-proof
Sustainable solutions
Chromium(VI)-free process for environmentally friendly and legally compliant surface treatment.
Refinement
from surfaces
In contrast to other processes, aluminum chromating retains its conductivity, which makes chromating particularly attractive for electrical and mechanical applications. Thanks to modern, chromium(VI)-free processes such as SurTec 650, aluminum chromating today is not only functional, but also environmentally friendly and REACH-compliant. Whether in the automotive, aviation or electronics industry - the process is used wherever reliable, durable and standard-compliant surfaces are required.
Efficient, durable, versatile.
Advantages
Whether as corrosion protection, primer or conductive intermediate layer - the chromating of aluminum impresses with its versatility. Modern processes such as SurTec 650 combine environmental friendliness with technical performance and make the process a future-proof solution for a wide range of applications.
Environmentally friendly chromating
With SurTec 650, we rely on a modern chromating process that is completely chromium(VI)-free - and therefore not only REACH and ROHS-compliant, but also a future-proof solution for sustainable production. The colorless conversion coating offers excellent corrosion protection, remains conductive and is ideal as a primer for coatings. SurTec 650 combines environmental compatibility with technical performance - without compromising on quality or durability. This enables us to meet both legal requirements and the increasing expectations of environmentally friendly production processes.
More about SurTec 650Conversion layers
Chromating offers the option of applying a colorless or yellow conversion coating to aluminum surfaces. Our colorless version - SurTec 650 - does not require any chromium(VI), meets the requirements of the ROHS directive and still achieves an impressively high resistance that almost matches that of classic yellow chromate. The process is not only environmentally friendly and legally compliant, but also offers design flexibility: whether functional or aesthetic - by choosing the coating color, your products can be specifically adapted to individual requirements and designs.
Layer that can do more.
Functional protection
Conversion coatings reliably protect aluminum from corrosion and at the same time act as an effective adhesion promoter. The perfect basis for painting, bonding or powder coating.
For industry, technology and design.
Wide range of applications
Whether in electronics, aviation or mechanical engineering, conversion coatings are used wherever durable and functional aluminum surfaces are required.
Proven in series and individual production.
Reliable & economical
The treatment can be efficiently integrated into existing production processes, with consistent quality, high repeat accuracy and minimal material removal.
FAQs
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.