Anodizing, also known as anodization or anodic oxidation, is an electrolytic process used to create a protective oxide layer on the surface of components. Anodizing is primarily performed on aluminum alloys. The thickness and color of the layer depend on the aluminum alloy substrate and the operational conditions of the anodizing process. The resulting oxide layer enhances the functional properties of the aluminum alloy, particularly increasing corrosion resistance, hardness, and abrasion resistance of anodized parts.
Anodizing is environmentally friendly because it reinforces the natural oxidation of aluminum, thus avoiding the production of heavy metals or other harmful and hazardous by-products. Bomex operates an anodizing technology using a sulfuric acid solution.

Technical Parameters

  • Higher hardness of 200 to 400 HV 
  • Good abrasion resistance 
  • Increased corrosion resistance  
  • Electrical conductivity
  • Thermal resistance

  • Technology characteristics 

  • The oxide layer is not applied to the ground as in plating or coating processes but rather grows into and simultaneously from the base material, making it integrated directly into the base. The resulting thin oxide layer is regularly porous, which can be utilized for subsequent coloring. Anodizing in sulfuric acid is primarily used in engineering, construction, and architectural applications, but also in automotive, aerospace, and other industries. It complies with ISO 7599, EN 12373, EN 2284, MIL-A-8625 standards.
  • Layers

  • 5 – 30 µm
  • Dimensions of Parts

  • Length: 2 m
  • Weight: 650 kg

Base Materials

Aluminum and its alloys

Advantages of the Technology

    • Hardness and abrasion resistance Anodizing enhances the hardness and abrasion resistance of the aluminum base. The achieved hardness depends on the specific alloy and the anodizing method. 

    • Corrosion resistance Anodic oxidation improves the corrosion resistance properties of the coated component. 

    • Color stability and electrical non-conductivity of surfaces Anodizing provides chemical stability to the surface of aluminum components, making anodized elements suitable for long-term exposure to weather conditions and visual applications. 

    • Decorative use The porosity of the anodized surface can be utilized to color components and achieve the desired aesthetic appearance.

How Do We Work?


Submit an Inquiry

Whether you are from Prague, Brno, Vsetín, or Bratislava, you just need to fill out the inquiry form, or alternatively, call us or send an order for metal surface treatment to BOMEX via email.


Order Registration

We will register your order at BOMEX and send you a confirmation via email. If it's an individual solution for metal surface treatment, our colleagues will contact you for further info.


Expert Consultation

Based on our extensive experience, we will propose an optimal solution tailored specifically to your order in the field of metal surface treatment.


Order Processing

Your parts get processed according to the selected surface treatment.


Parts Inspection

The output inspection will reveal any imperfections in the coating – in addition to visual inspection, we use measuring instruments to determine layer thickness, possible porosity, adhesion etc.



We will contact you, the customer, who can pick up the parts at our location in Vsetín, or we can arrange packaging and direct delivery to you.

Do you have a question for BOMEX?

Write us, and we will get back to you by the next working day.

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