Laser Marking Under Anodizing vs. Engraving: Why "Invisible" is Often the Better Solution
Under-anodizing markings protect what engravings destroy: the protective layer. The result: better corrosion resistance, no dirt traps, and constant function. Read here why this is crucial for Automotive, MedTech, and Electronics.
When marking aluminum components, the method determines more than just aesthetics. Classic engravings locally remove the anodized layer, and thus exactly the protection that preserves the material from corrosion, chemical influences, and wear.
The alternative to this is laser marking under the anodized layer. Yes, you read that right: UNDER the layer. Here, the surface remains closed, smooth, and functionally intact. No micro-grooves, bacterial traps, or electrically conductive interruptions are created.
This is, among other things, particularly interesting for industries with high requirements, such as:
- Automotive & E-Mobility: durable, corrosion-resistant marking
- Medical Technology / Clean Rooms: hygienic, easy-to-clean surfaces
- Aerospace: no structural weakening through material removal
Conclusion: While engraving is a simple solution, under-anodizing marking offers clear advantages wherever function, durability, and quality are decisive.
If you would like to learn more about this and hold our sample part in your hand to see for yourself what it feels like to feel something without feeling anything, we cordially invite you to visit us at our stand.
