Alodine Services for Custom Drone CNC Parts

Customization Options

Protecting Critical UAV Components with Wear-Resistant Coatings and Exact Tolerances.

Exceptional Paint Adhesion

Alodine creates a chemically bonded surface for paint.
Maintains High Electrical Conductivity

We keep contact resistance below 5000 micro-ohms.
Zero Dimensional Weight Change

Our alodine process adds negligible thickness to parts.
Superior Corrosion Resistance

Alodine protects aluminum from oxidation for 168+ hours.

Our alodine service provides essential oxidation protection for internal drone frames, structural brackets, and heat sinks without altering critical dimensions.

We offer high-performance alodine (Chromate Conversion) finishes that maintain excellent electrical conductivity for grounding while ensuring superior paint adhesion. Mechanical engineers benefit from our precision-controlled immersion process, which provides MIL-DTL-5541 compliance and strong corrosion resistance without the thickness buildup associated with traditional anodizing.

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Advanced Specs & Options

Surface Electrical Conductivity

Our alodine ensures low contact resistance, allowing engineers to maintain reliable electrical grounding throughout the drone’s aluminum structural frame.

Dimensional Precision Retention

We offer alodine as a "zero-buildup" coating, ensuring that your tight-tolerance CNC bores and threaded holes remain perfectly within spec.

Paint and Adhesive Bonding

Our service provides a chemically active surface that significantly improves the peel strength of primers, topcoats, and structural drone adhesives.

Corrosion Protection Standard

We provide MIL-spec compliant alodine coatings that pass 168-hour salt spray tests, shielding internal drone components from environmental oxidation.

Process Control & Quality Assurance

Visual Check

We verify consistent gold or clear appearance.
Surface Resistance Test

We confirm low resistance for grounding reliability.
Adhesion Test

We ensure the coating bonds to aluminum.
Corrosion Verification

We test durability against 168-hour salt exposure.

Frequently Asked Questions

Will alodine treatment affect my high-precision CNC tolerances?

No. Unlike anodizing, which can add 25 microns of thickness, our alodine process creates an ultra-thin film (typically 0.5 µm to 4 µm). This ensures that press-fits, bearing seats, and threaded holes remain perfectly within your original design specifications.

Does alodine provide a reliable grounding path for drone electronics?

Yes. A major advantage of alodine over anodizing is its electrical conductivity. It is ideal for EMI shielding and grounding internal drone frames, maintaining surface resistance low enough for sensitive sensor data and power distribution.

How does the corrosion resistance compare to standard anodizing?

While thinner than anodizing, our alodine (specifically Class 1A) provides robust protection that easily passes the 168-hour salt spray test (ASTM B117), making it perfect for protecting internal structural parts from humidity and oxidation.

Is alodine a good choice if I plan to paint or bond my parts later?

Absolutely. Alodine is the industry-standard primer for aluminum. It creates a chemically active surface that significantly improves the "bite" for paints, powder coatings, and structural adhesives used in carbon fiber-to-aluminum bonding.

Can I use alodine on sensitive sensor housings without causing interference?

Yes. Because alodine is non-magnetic and does not change the base properties of the aluminum, it won't interfere with onboard compasses, GPS modules, or high-frequency radio transmissions.

What is the difference between Clear and Gold alodine for my BOM?

Gold (Alodine 1200) offers slightly better corrosion resistance and allows for easy visual inspection of coverage. Clear (Alodine 1500) is preferred when you want to maintain the natural, silver look of the machined aluminum.