A chromate conversion coating that protects aluminum from corrosion while keeping the surface electrically conductive.
A chemical conversion coating for aluminum, also known as Alodine or chromate conversion coating, that adds corrosion resistance without insulating the surface the way anodizing does.
The aluminum part is dipped in or sprayed with a chromate (or trivalent chromium) solution that reacts with the surface to form a thin oxide layer, typically clear or gold depending on the chemistry used. The layer is thin enough to leave tight tolerances unaffected.
Electronics enclosures and EMI-shielding parts that need grounding continuity, aerospace parts specified to MIL-DTL-5541, and as a pretreatment layer before paint or anodizing.
Aluminum. Full applicable-materials list, color range, and which finishes can combine are confirmed per order — see the Materials & Finishes page →
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