Chromate Conversion Coating Service
Chromate conversion coating is a chemical treatment that enhances the corrosion resistance of aluminum and its alloys while improving adhesion for subsequent coatings. This process forms a thin, protective oxide layer without significantly altering the material’s dimensions, making it ideal for aerospace, electronics, and industrial applications.
Advantages:
✔ Corrosion Protection: Provides a durable, oxidation-resistant layer to extend material lifespan.
✔ Improved Paint Adhesion: Enhances bonding for paints, primers, and other surface coatings.
✔ Minimal Dimensional Impact: Creates a thin protective film without affecting precision tolerances.
✔ Environmentally Adaptable: Available in RoHS-compliant formulations for eco-friendly applications.
Chromate conversion coating is the perfect solution for industries requiring lightweight corrosion protection and enhanced surface preparation.
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Properties
| Surface preparation | Colors |
Applicable materials
|
Thickness |
Cosmetic availability
|
Visual appearance
|
|---|---|---|---|---|---|
| As machined (Ra 3.2μm / Ra 126μin) | Clear/ slight yellow tint | Aluminum (7xxx series not recommended) | None | No | Machining marks are visible |
| Bead blasted (Glass beads #120) | Clear/ slight yellow tint | Aluminum (7xxx series not recommended) | None | Cosmetic on request | Machining marks are completely removed on “cosmetic” parts but may be visible on “non-cosmetic” parts |