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Mifa extrusion aluminium

Aluminium Surface Treatment to customer specification

Mifa is the specialist in aluminum extrusion profiles with exceptional precision from +/- 0.02 mm. Together with optimal surface treatment for each application, the possibilities are unprecedented.

Aluminum is a versatile high-tech material, but without the right treatment you may be faced with corrosion, wear and tear and poor conductivity or friction. You can prevent this with the right aluminium surface treatment! Mifa has the expertise and knowhow to apply the right surface treatment for every situation. Many (large) companies trust us thanks to our extensive knowledge and years of experience in various markets, including Philips, Tesla, KTM, Airbus, Daimler and Porsche.

Surface treatment of extrusion profiles

Mifa Surface treatment

With our technical knowledge and experience, we advise on the best surface treatment or coating for any application. Mifa Surface Treatment provides mechanical, electrochemical and galvanic applications. But you are also at the right place for polymer layers, primers and wet painting.

Results after aluminium surface treatment

Aluminium naturally has good corrosion resistance due to the formation of a protective oxide layer. For some applications, untreated aluminum is perfectly suitable. However, aluminium surface treatment is often important because of the many advantages:

  • Improves durability
  • Longer lifespan
  • Improved functionality
  • Exclusive high-end appearance
  • Protection against corrosion
  • Reduced wear and friction
  • Electrical insulation or conduction
  • Improved surface structure and roughness
  • Obtaining desired reflectivity
  • Improved abrasion resistance
  • Better adhesion for gluing or painting

Please note that each specific aluminium surface treatment has its advantages and disadvantages. If you would like to know what Mifa can do for you, please contact us for expert advice.

Aluminium surface treatment at Mifa

Different treatment methods

The range of surface treatments to improve the properties of aluminum products is diverse. Each coating has its own specifications, applications and advantages. Choosing the right surface treatment can be difficult. Mifa Surface Treatment is happy to support its customers in this selection process. Each coating has its own specifications, applications and advantages. Below, we go into more detail about some of the surface treatments we offer.


Improve aluminium profiles by anodizing. Anodizing is an electrochemical process in which aluminium is converted into aluminium oxide (Al2O3) in a controlled environment. At Mifa, we have three methods to anodizing aluminium profiles:

  1. Sulphuric acid anodizing
  2. Hard anodizing
  3. Chromic acid anodizing

Anodizing provides the following benefits:

  • Corrosion resistance
  • Wear-resistance
  • Optical requirements
  • Insulation and reflection
  • Adhesive layer for lacquers or glues
  • Gliding properties
  • Non-stick

Chemical Nickel Plating (DurniCoat)

By means of a chemical process a well adhering amorphous nickel phosphor layer (NiP) is deposited on the profile. The chemical nickel process, called DurniCoat (DNC), is an entirely unique development. Advantages of nickel plating:

  • Narrow size tolerances
  • Chemical and corrosion resistance
  • Adhesion improvement
  • Adjustable final hardness
  • Ductility and solderability
  • Low friction coefficient
  • Current conducting

HART-COAT ® (Hard Anodizing)

HART-COAT®, abbreviated HC, is a hard electrolytic oxidation layer that protects aluminium alloys against wear and corrosion. This surface treatment, generally known under the term hard anodising, is essentially intended to improve the properties of a wide variety of parts and to upgrade and/or optimise visual aspects. Other advantages include:

  • High wear resistance
  • Excellent corrosion protection and hardness
  • High thermal and electrical insulation values
  • Excellent dimensional stability


By making the surface of a workpiece passive, no deterioration (corrosion) takes place. The conversion layer formed is also an excellent basis for the application of various lacquers. This layer is electrically conductive with a constant resistance.

  • Improve corrosion resistance
  • Basis for (wet) coating systems
  • Constant resistance for electrical conductivity

Do you want to know more about our surface treatments? Then download our whitepaper.

Surface technologies for aluminum

Standard coatings

Conversion layers


  • Chromating process
  • Electroless or chemical nickel plating, black nickel plating
  • Anodizing (sulfuric acid or chromic acid) and hard anodizing
  • Electroplating
  • Wet painting
  • Powder coating
  • Aluminium passivate
  • Anodizing
  • Plasma electrolytic
  • Aluminium passivate
  • (Chemical) nickel
  • Silver
  • Gold
  • Tin
  • Hard chrome
  • And more...

Organic coatings

Customized coating

Curious which Surface Treatment Mifa can achieve for you?

  • Painting
  • Paint primers
  • Glue primeres
  • CVD / PVD and synergistic coating on requestt
  • Custom coating development by our own R&D department
  • Ask about all the options

Read all about the possibilities and all the benefits in our whitepaper

Mifa Masterclass

Would you like to know everything about the possibilities of aluminium surface treatments and related topics such as extrusion?

Expand your knowledge in the Mifa Masterclass and discover the unprecedented possibilities.

Mif surface treatment


Mifa produces high-quality extrusion profiles that we subject to process control and stringent product control. Because of this, we attach great importance to certificates. Mifa Surface Treatment is IATF16949 and ISO 14001 certified. Because we work for the aerospace industry, we are also AS9100 certified.

Contact us

Discover the possibilities of Mifa's coatings and surface treatments. Mifa has suitable (in-house) surface treatments for every purpose, every requirement and every wish.

We are able to create a coating specifically for you. What do you want to improve your products with? Feel free to contact one of our employees, they are happy to help.

Aluminium extrusion for aerospace components

Mifa Aerospace

Vertical integration
Extensive range of alloys
Quality assurance AS

Mifa Aerospace