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Conversion layer - Invisible protection with a technical effect

June 11, 2025

Conversion layer - This term stands for one of the most effective methods of specifically protecting and functionally improving metal surfaces. Whether aluminum, steel or zinc: a chemically produced conversion coating extends the service life of technical components, improves adhesion for coatings and reliably protects against corrosion - permanently, invisibly and sustainably.

What is a conversion layer?

This is a chemically produced, protective layer that is created by reaction with the base material. It is primarily used to Corrosion protectionbut can - depending on the procedure - also be the Adhesion for subsequent coatings such as paint, powder or adhesive. The layer is firmly bonded to the metal and ensures a functionally optimized surface.

Common methods for creating conversion layers:

  • ChromatingThin protective layer with good conductivity, ideal for technical applications
  • Passivation: Chromium(VI)-free alternative with environmentally friendly profile
  • AnodizingOxide coating for aluminum with high chemical and mechanical resistance
  • Coatings (e.g. powder or paint)Combine protection and decorative effect

Where are they used?

Conversion layers are in demand wherever there is a need for Durability, safety and functional reliability arrives - for example with Electronic housings, vehicle components, machine components or aerospace parts. They not only improve the resistance to external influences, but also the processability of the materials.

Modern systems such as Bonderite M-NT 400 or SurTec 650 enable today a Environmentally friendly, chrome-free implementation - without compromising on quality and protection.

Conclusion:

High-quality pre-treatment not only protects against environmental influences, but also improves functionality, reduces maintenance costs and extends the service life of technical products - a decisive factor in modern manufacturing.

Conversion layer - Invisible protection with a technical effect

June 11, 2025

Conversion layer - This term stands for one of the most effective methods of specifically protecting and functionally improving metal surfaces. Whether aluminum, steel or zinc: a chemically produced conversion coating extends the service life of technical components, improves adhesion for coatings and reliably protects against corrosion - permanently, invisibly and sustainably.

What is a conversion layer?

This is a chemically produced, protective layer that is created by reaction with the base material. It is primarily used to Corrosion protectionbut can - depending on the procedure - also be the Adhesion for subsequent coatings such as paint, powder or adhesive. The layer is firmly bonded to the metal and ensures a functionally optimized surface.

Common methods for creating conversion layers:

  • ChromatingThin protective layer with good conductivity, ideal for technical applications
  • Passivation: Chromium(VI)-free alternative with environmentally friendly profile
  • AnodizingOxide coating for aluminum with high chemical and mechanical resistance
  • Coatings (e.g. powder or paint)Combine protection and decorative effect

Where are they used?

Conversion layers are in demand wherever there is a need for Durability, safety and functional reliability arrives - for example with Electronic housings, vehicle components, machine components or aerospace parts. They not only improve the resistance to external influences, but also the processability of the materials.

Modern systems such as Bonderite M-NT 400 or SurTec 650 enable today a Environmentally friendly, chrome-free implementation - without compromising on quality and protection.

Conclusion:

High-quality pre-treatment not only protects against environmental influences, but also improves functionality, reduces maintenance costs and extends the service life of technical products - a decisive factor in modern manufacturing.

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