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Alodine

Surface treatment for corrosion protection and coating adhesion on compatible metals.

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Alodine
  • Anker SOLIX
  • eufy
  • soundcore
  • PLAUD
  • xTool
  • Ulike
  • Jackery
  • Roborock
  • DREAME
  • EcoFlow
  • Insta360
  • TCL
  • Beatbot
  • CASETiFY
  • Creality
  • Shokz
  • SEGWAY
  • realme

Overview

Alodine is a chemical coating. Used to passivate and protect the workpiece from corrosion. Alodine is widely used in chemical industries such as electroplating, welding, alloy manufacturing, pigments, and leather making.

Finish specifications

PropertyDetails
ColorsYellow, Clear

Advantages and considerations

Surface & substrate

Advantages

Pros
Preserves Electrical & Thermal Conductivity: Excellent for electronic grounding and EMI/RFI shielding. Zero/Negligible Dimensional Impact: Film thickness is extremely thin, maintaining tight CNC machining tolerances. Cost-Effective & Fast Processing: Simple immersion process with short processing cycles and lower cost per part. Excellent Paint/Primer Base: Serves as an ideal prep layer for liquid paint or powder coating adhesion. Easy Touch-Up: Can be re-applied or repaired locally in the field using Alodine touch-up pens.

Surface & substrate

Considerations

Cons
Low Abrasion Resistance: Soft chemical layer easily scratches under physical wear or friction. Inferior Corrosion Protection Compared to Hard Anodize: Offers good corrosion resistance, but less durable in harsh environments than thick anodized layers. Limited Color Options: Typically only yields gold/iridescent yellow, or clear/transparent finishes.

How Aria supports your project

Meet our team
MadeAria operator carrying out in-process quality control
Geometry · access · material

Design feedback before production

We review tool access, geometry and material choice before manufacturing.

Drawing → dimensional checks

Inspection to your drawing

Dimensional checks and inspection reports for the critical features on your drawing.

Tooling → finishing → inspection

A schedule for your order

Tooling, finishing and inspection included in your delivery schedule.

Compatible materials

Selection requirements

Aluminum

Control anodized color consistency and allow for coating growth on close fits; the supplied reference gives 10–50 µm per side for some hard-coat processes. Welding reduces 6061-T6 strength locally and may require a specified heat-treatment route. Common alternatives include 7075, 2024, 5052 and 6063. Conventional, hard or colored anodizing; blasting, brushing, polishing, powder coating, electrophoretic coating, conversion coating and qualified nickel/chrome plating.

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