Yes, modern passivation processes are Optimally designed for industrial series processes. They can be flexibly integrated into existing Dipping, spraying or wiping process and are suitable both for automated systems as well as for manual applications for small series or individual parts.

Thanks to Stable bath guide, Simple pH and conductivity control and high reproducibility these processes are ideal for consistent quality at high volumes. Even complex geometries or sensitive components can be treated reliably.

Especially processes such as SurTec 650 or Bonderite M-NT 400 are known for their ability to Short cycle times, high repeat accuracy and minimal reworking an economical solution for modern production.

In fact, this is one of the main reasons why aluminum is passivated. The conversion layer created significantly improves the Adhesion (adhesion) for subsequent surface treatments such as Powder coating, wet painting or adhesives.

Passivation ensures that the surface is evenly activated and Permanent adhesion of paintswithout peeling off under thermal or mechanical stress. The connection remains stable even when exposed to environmental influences such as moisture, temperature fluctuations or UV radiation.

In addition, passivation prevents the so-called "Infiltrate" of the coating due to corrosion - a decisive factor for the Long-term quality of coated aluminum components in demanding environments.

Both the Passivation as well as the Chromating are among the procedures for chemical pretreatment of aluminum and other metals. Both generate a so-called Conversion layerwhich protects the material from corrosion and improves adhesion for further coatings. Nevertheless, there are important differences:

• Chromating is a process that was originally developed with Chromium(VI)-containing chemicals known, for example, as yellow chromating. Although these offer very good corrosion protection, they are now regarded as Harmful to health and the environment. Although modern variants (such as SurTec 650) are also chromating, they are chromium(VI)-free.
• Passivation primarily describes the application of chromium-free or chromium(III)-based processeswhere the shift is primarily based on Corrosion protection and adhesion promoter without toxic components.

In practice, the terms are sometimes blurred, as modern chromium(VI)-free processes such as SurTec 650 can be described as both "passivation" and "chromating". The important thing is:
Passivation today stands for environmentally friendly, REACH-compliant solutionswhich are particularly suitable for companies that focus on sustainability, legal safety and modern production standards.