Anyone who deals with the surface pretreatment of aluminum will sooner or later come across the terms Alodine and Bonderite. They often appear in the same context - for example in the chromating or passivation of metal surfaces. But what is actually behind them? And what is still valid today?
Two names - one product line
Alodine was an established product brand of the Henkel company for chemical conversion coatings for decades - especially for Chromating on aluminum. Many industrial users still know the name from the days when classic yellow chromates with Chromium(VI) were the norm.
With the further development of chemistry and the increasing importance of environmentally friendly, REACH-compliant solutions Henkel has adapted its brand strategy: The products in the Alodine range have been brought together under the new name Bonderite.
In short:
Bonderite is the modern brand name for Henkel surface technology, while Alodine is the predecessor name that is still used in many companies.
What is Bonderite today?
Bonderite today comprises a wide range of products for Pre-treatment, cleaning, passivation and conversion coating - including modern ones, chromium(VI)-free systems how:
- Bonderite M-NT 400 - Chromium-free passivation for aluminum, steel & zinc
- Bonderite C-AK - Cleaning products
- Bonderite M-ZN - for zinc phosphating
The brand name now stands for Modern, reliable and sustainable surface solutionswhich can be easily integrated into industrial production processes and are aligned with international environmental standards.
Why is the change important?
Many companies that used to work with Alodine products are now looking for substitutes or information on alternatives - especially in the course of REACH bans for chromium(VI). The answer is usually: Bonderite.
The chemical basis has evolved in many cases, but the goal is the same:
Improve adhesion, prevent corrosion, safeguard processes - only today with less risk to people and the environment.
Conclusion:
Alodine is yesterday's household name, Bonderite is today's solution.
If you are looking for modern surface technology without chromium(VI), with high environmental standards and broad applicability, the current Bonderite systems the best advice.
