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Mifa extrusion aluminium

Aluminium Surface Treatment to customer specification

Mifa specialises in custom aluminum extrusion profiles with exceptional precision from +/- 0.02 mm. Together with the optimal aluminium 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, 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. Next to surface treatment, choosing the right alloy contributes to the quality of the final product. At Mifa, we even have aerospace aluminium alloys like the 6061, 6082, and 7075 alloy.

Surface treatment to aluminium provides, among other things:

  • Improved functionality;
  • Increased longevity;
  • Protection;
  • Reduced wear and friction;
  • Electrical insulation or conduction.

Custom extrusion profiles

Mifa knows exactly what requirements extrusion profiles must meet. We produce completely finished precision products with very high accuracy. Examples include:

  • Profile weight from 0.003 kg/meter to 10 kg/meter;
  • Profile size from Ø 3mm to Ø 180 mm / 220 x 60 mm;
  • Wall thickness from 0.25 mm: ultra-light and strong design (substantial weight savings);
  • Tolerances from ± 0.02 mm;
  • Avoid/reduce costly machining (post-machining) steps.

The 3D model is an example of an aluminum profile from Mifa.

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.

At Mifa, we do everything in-house. Aluminium extrusion (as well as magnesium extrusion) and surface treatments that result in durable custom aluminum profiles of the highest quality.

Results after surface treatment to aluminium

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. The three types of surface treatments we carry out are anodizing, passivation and the application of polymer coatings.


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 anodize aluminium profiles in different ways:

  • By applying a GLISSCOAT® coating;
  • By applying a HART-COAT® coating;
  • Technical anodizing.

More details are given on the 'HART-COAT®' coating.

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 anodizing, 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.

In general, anodizing provides a number of  benefits, including:

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


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.

Polymer coatings

Different polymer layers can be applied. The variants we offer are TUFRAM®, LECTROFLUOR®, and NEDOX®. Each type of polymer layer has unique advantages. For instance, TUFRAM® coatings protect aluminum parts against wear, corrosion, adhesion, and galling. LECTROFLUOR® coatings provide excellent protection against chemical and corrosive influences.

Take a look at the table below to get an overview of Mifa's surface technologies.

Surface technologies for aluminum

Standard coatings

Conversion layers


  • Chromating Surtec 650
  • Normal anodizing (sulfuric acid or chromic acid), hard anodizing (HartCoat®) & GlissCoat 2083®
  • Electroplating
  • Wet painting
  • Powder coating
  • Passivation
  • Anodizing
  • Plasma electrolytic

  • Silver
  • Gold
  • Tin
  • Hard chrome
  • And more...

Organic coatings

Customized coating

Curious which Surface Treatment Mifa can achieve for you?

  • Painting
  • Paint primers
  • Glue primers
  • 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

Want to know more about Mifa's surface treatments for aluminium? Download our whitepaper:

Satisfied Mifa customers

  • Philips
  • Tesla
  • KTM
  • Airbus
  • Daimler
  • Porsche

Know-how and expertise

Mifa is the specialist in aluminium extrusion profiles with extraordinary precision from +/- 0.02 mm. Together with optimal surface treatments, the possibilities are unprecedented.

Combined with forty years of knowledge and experience with CNC machining and high-quality finishing techniques, we are your ideal partner with an eye for detail & quality. Choosing the right alloy is of course also important to guarantee the highest quality end product. At Mifa, we also have aircraft aluminium alloys 6061, 6082 and 7075.

Want to know all about the possibilities of surface treatments, aluminium coatings and aluminium extrusions? Expand your knowledge by joining the Mifa Masterclass and discover the unprecedented possibilities.

Surface treatment of extrusion profiles


Mifa engineers like to think along with you in the design process. They have state-of-the-art knowledge and technologies and thus help you see what is possible in terms of innovation and technology.

Whether this involves optimising existing methods and applications or developing new treatments and processes. Through co-engineering, we ensure an optimal end product and innovative solutions at the lowest possible cost.


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.

More information on our aluminium surface treatments?

Mifa surface treatment

More information on Mifa's surface treatments and aluminium coatings? Would you like a quotation? Or curious about all other possibilities for finished precision products? The easiest way is to fill in the contact form. We will then contact you as soon as possible!

Aluminium extrusion for aerospace components

Mifa Aerospace

Vertical integration
Extensive range of alloys
Quality assurance AS

Mifa Aerospace