CERANOD® natural anodizing is a proven electrochemical surface refinement process for aluminium. Through anodic oxidation, a uniform aluminium oxide hydrate layer (Eloxal) is formed – directly from the base material and covalently bonded to it. Unlike coating, no foreign material is applied.
The microporous structure of the oxide layer allows for effective color pigmentation. A subsequent sealing step closes the pores and protects the color. This makes the process ideal for both technical and decorative applications.
The oxide layer typically grows two-thirds into the material and one-third outward – a dimensional change important for precision parts. A high-quality surface preparation is essential and includes in-house options such as cleaning, chemical matting, satin finishing, polishing or brushing.
Our processes are tailored to the specific alloy and production requirements – from custom single parts to fully automated high-volume production with excellent reproducibility.
Technical Specifications:
- Layer Thickness: 5–25 µm
- Hardness: 200–350 HV
- Max Part Size: up to 3,000 × 6,000 mm
- Max Weight: up to 2.5 tons
- Applications (technical): Precision parts, tight tolerances, functional assemblies
- Applications (decorative): Visible parts, interior design elements, colored finishes (e.g. silver, bronze, black)
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Hotline:
+49 (0)511 89-0
Deutsche Messe AG
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