Alodine 1200 Coating
Alodine 1200 chromate conversion coating—military-grade corrosion protection with a golden finish. Ultra-thin, electrically conductive, paint-ready, and trusted for aerospace precision and performance.
Trusted by aerospace OEMs, defense integrators, and electronics manufacturers for critical metal finishing.
Alodine 1200 Coating Services
Alodine 1200, also known as Chromate Conversion Coating, is a trusted surface treatment used primarily on aluminum and its alloys. It enhances corrosion resistance while maintaining electrical conductivity—perfect for parts that need both protection and grounding. Unlike coatings that form a thick outer layer, Alodine 1200 chemically reacts with the surface to create a thin, durable conversion layer.
At Diamond Metal Finishing, we apply Alodine 1200 coatings with exceptional care and consistency—serving industries like aerospace, defense, electronics, and general manufacturing. Whether you’re prepping for painting, ensuring electrical continuity, or simply adding a corrosion-resistant layer without changing part dimensions, Alodine 1200 is a cost-effective and performance-driven choice. This coating meets MIL-DTL-5541 Class 1A and Class 3 standards, making it suitable for both maximum corrosion resistance (Class 1A) and low electrical resistance (Class 3).
Benefits of Alodine 1200 Coating
- Enhances corrosion resistance on aluminum and its alloys
- Provides an excellent base for paint, powder coating, or adhesives
- Meets MIL-SPEC and aerospace-grade requirements
- Forms a thin, protective, non-thickness-building film
- Eco-friendlier alternative to heavy metal coatings
- Allows for selective coating using masking techniques
- Ideal for electrical enclosures, housings, and connectors
- Suitable for both cosmetic and functional surface treatment needs
Alodine 1200 Coating Specifications
| Attribute | Details |
|---|---|
| Standard | MIL-DTL-5541, RoHS-compliant variants available |
| Thickness | Typically 0.25–1.0 µm (very thin film) |
| Color | Golden iridescent hue; shade may vary by alloy |
| Compatible Alloys | Aluminum and aluminum alloys (2000–7000 series) |
| Conductivity | Excellent for grounding and low-resistance applications (Class 3) |
| Paint Adhesion | Superior bonding surface for paints, primers, and adhesives |
| Corrosion Resistance | Meets or exceeds MIL-spec salt spray test standards |
Technical Specifications
- Process Type:
Chemical conversion process involving immersion or spray application. The aluminum surface reacts with the chromate solution to form a protective layer. - Coating Thickness:
Extremely thin—between 0.25 and 1.0 microns. Won’t impact tight tolerances or part dimensions. - Compatible Alloys:
Best suited for aluminum and its alloys. Widely used on aerospace-grade and industrial-grade materials. - Corrosion Resistance:
Protects base metal from oxidation and pitting in harsh environments—especially when paint or topcoat is applied afterward. - Conductivity:
Maintains excellent electrical conductivity—ideal for bonding, grounding, or shielding applications. - Thermal Stability:
Stable at operating temperatures up to 140–160 °C. Not suitable for high-heat applications. - Environmental Compliance:
Hexavalent chromium versions still used in military and aerospace, but RoHS-compliant trivalent alternatives are available for commercial use.
Design & Tolerance Best Practices
- Minimal Dimensional Impact
With sub-micron thickness, Alodine 1200 doesn’t interfere with tight tolerances. - Selective Masking
Masking is crucial to protect threads, grounding points, and no-coat zones from chemical exposure. - Thorough Surface Prep
Cleanliness is key. Surfaces must be free of grease, oils, and oxides before treatment. - Avoid Post-Coating Machining
The coating is thin and can be easily removed—final machining should be done beforehand. - Proper Storage Post-Coating
Store coated parts in dry, clean environments to prevent handling damage or contamination. - Topcoat Pairing for Extended Protection
For aggressive environments, combine Alodine 1200 with powder coating or paint for dual protection.
Why Choose DMF for Alodine 1200 Coatings?
- Military-Grade Quality, Certified Standards: We follow MIL-DTL-5541 specifications with meticulous documentation and traceability for full compliance.
- Precision-Controlled Application: Automated and manual processing lines ensure consistent coating thickness and defect-free surfaces—no blotching, no shortcuts.
- Advanced Masking Capabilities: Our custom jigs and expert masking protect critical zones while preserving functionality in complex geometries.
- High-Volume & Short-Run Ready: Whether it’s aerospace bulk orders or rapid-turnaround prototypes, we scale to meet your volume and deadline requirements.
- Post-Coating Integration: Need paint, powder coat, or assembly after Alodine? We offer in-house post-processing to streamline your production pipeline.
- Customer-First Engineering Support: Unsure if Alodine 1200 is a match for your parts? Our technical team helps with alloy compatibility, masking strategies, and coating recommendations.
Alodine 1200 for Different Industries
Aerospace
Ensures paint adhesion and corrosion resistance on fuselage components, brackets, and structural parts. Meets strict MIL and Boeing standards.
Defense
Ideal for chassis, covers, and panels where both corrosion protection and conductivity are required. Supports stealth tech and environmental durability.
Medical
Used on equipment frames and casings where appearance, corrosion resistance, and cleanability are important—but without heavy topcoats.
Automotive
Protects lightweight aluminum parts like housings, panels, and connectors before painting or powder coating—adding an extra line of defense.
Electronics
Perfect for enclosures and backplates where grounding and conductivity are critical. Common in aerospace electronics and telecom gear.
Architectural
Pre-treatment for powder-coated aluminum window frames, rails, and panels—improving finish life and reducing maintenance costs.
Energy / Power
Used on aluminum panels and enclosures in solar, wind, and electric infrastructure to improve corrosion resistance without interfering with function.
Commercial
From store fixtures to display panels, Alodine ensures painted parts look better, last longer, and resist the wear and tear of daily life.
Chromate Conversion Certifications & Standards
- MIL-DTL-5541 Compliant
- ISO 9001:2015 Certified Facility
- RoHS & REACH Compliant Options
- Certificates of Conformance Available
Frequently Asked Questions (FAQs)
What is Alodine 1200, and why should I choose it for my parts?
Alodine 1200 is a chromate conversion coating used primarily on aluminum and its alloys to improve corrosion resistance and paint adhesion. It creates a thin, conductive, golden iridescent film without adding significant thickness. It’s a cost-effective surface treatment often used in aerospace, military, and electronics industries.
Is Alodine 1200 RoHS compliant?
Traditional Alodine 1200 contains hexavalent chromium and is not RoHS compliant. However, we also offer RoHS-compliant alternatives (like trivalent chrome formulations) if your application requires an environmentally friendly or regulatory-compliant coating.
What materials are compatible with Alodine 1200 coating?
Alodine 1200 is specifically designed for aluminum and aluminum alloys, especially those in the 2000, 5000, 6000, and 7000 series. It’s not recommended for use on steel, stainless steel, or non-aluminum metals.
What aluminum alloys are compatible with Clear Chem Film Class 3?
Most commonly used aluminum alloys are compatible—6061, 5052, 7075, and castings too. Our team will review your specific alloy to ensure optimal adhesion and performance.
Is Alodine 1200 electrically conductive?
Yes, it is electrically conductive, making it ideal for parts that need grounding or EMI shielding. That’s why it’s often used in aerospace and electronics applications.
How long does the coating process take?
Our standard turnaround is fast and efficient, depending on part volume and masking complexity. We handle both small batches and large production runs with tight quality control.
Can I paint or powder coat over Alodine 1200?
Absolutely. Alodine 1200 provides an excellent base for paint, powder coating, or adhesive bonding. It improves paint adhesion and prevents corrosion under the coating.
How durable is Alodine 1200 compared to anodizing?
Alodine 1200 is not as thick or abrasion-resistant as anodizing, but it excels in corrosion resistance and conductivity. It’s ideal for parts that don’t require heavy wear resistance but still need protection and electrical continuity.
Can you handle both small prototypes and large production runs?
Yes. We are fully equipped for both short-run prototypes and high-volume production orders, with tailored workflows to meet your specific project requirements.
How do you ensure consistent coating quality across all parts?
We use a combination of automated and manual processing lines, in-process inspections, and final quality checks to ensure uniform coating coverage and compliance with MIL-DTL-5541 standards.
Specifications
- MIL-PRF-32348 (Protective Coatings)
- MIL-PRF-8625 (Anodizing – General)
- MIL-PRF-8625F (Anodizing – Latest Revision)
- MIL-A-8625 (Original Anodizing Standard)
- MIL-DTL-5541 (Chemical Conversion Coating)
- MIL-DTL-5541F (Updated Conversion Coating)
Related Services
REQUEST CALLBACK
Advanced Metal Finishing Solutions
WHY CHOOSE US
Decades Of Industry Expertise
Trusted by leading manufacturers for solving complex finishing challenges.
ISO 9001 Compliant Quality Control
We meet rigorous aerospace, defense, and industrial standards—all delivered under one roof.
Two Facilities, Modern Equipment
Equipped to handle high-volume, high-spec projects with speed and accuracy across industries.
Eco-Conscious & Compliant
Sustainability isn’t an add-on—it’s engineered into every step of our process and facility design.
Our SERVICES
From Coating to Cutting—We Handle It All.
Powder Coating
Applies baked-on powder finishes to metal for a tough, vibrant, and protective coating. Ideal for durability, weather resistance, and enhancing both lifespan and appearance.
Anodizing
Converts aluminum surfaces into a durable oxide layer that boosts corrosion resistance, wear resistance, & electrical insulation—ideal for industrial, & decorative applications.
Chromate Conversion
Chemically treats metal to improve corrosion resistance and paint adhesion. Uses trivalent chromium compounds via dipping, spraying, or brushing to create a protective layer.
Screen Printing
Fast and economical method to print crisp, multi-color graphics on various materials. Great for labels, logos, and signs that require durability and long-lasting clarity.
Laser Engraving
Uses lasers to mark metals with sharp, detailed, and lasting graphics or codes. Supports both deep engraving and surface etching, depending on project requirements.
Digital Printing
Delivers full-color, high-resolution graphics and labels on multiple surfaces. Best for short runs, prototypes, and custom signage with minimal setup and fast turnaround.
Traffic Signs
Produces weatherproof, high-visibility signs built for long-term outdoor durability. Crisp graphics, reflective coatings, and rugged materials ensure compliance and performance.
CNC Routing
Provides high-precision cutting of metal parts using computer-controlled machinery. Ideal for custom components, panels, and enclosures with clean edges & tight tolerances.
Our Facility
Built for Scale. Engineered for Speed.
Streamlined
process & on-time-delivery.
Efficient With Quick Turnaround Times
1st Facility
11,200+
sq-ft finishing facility.
Advanced Chemical Processing Facility
2nd Facility
21,200+
sq-ft coating facility.
Latest Powder Coating Technologies
Precision Finishing.
Delivered Fast.
Trusted by industrial manufacturers across a wide range of industries.
Because getting it right the first time, every time, is non-negotiable.
CLIENT STORIES
Hear from Our Customers
Diamond Metal Finishing has significantly eased our finishing process challenges, consistently accommodating and expediting to meet our tight timelines. Their support has positioned Star Precision to reach new heights, growth that would’ve been difficult without such a reliable finishing partner.
Mike B.
Quality Manager, Star Precision
How Star Precision Streamlined Production with Reliable Metal Finishing
How Metal Techniques Solved Lead Time & Quality Issue.
join the success
These are just a few of our successful clients
What services does Diamond Metal Finishing offer?
We offer a full range of metal finishing and industrial printing services, including: Powder Coating, Anodizing (Type II & Type III), Chromate Conversion (Chem Film), Screen Printing, Laser Engraving, Digital Printing, and Traffic Sign Printing. Our services are trusted by various industries, such as aerospace, energy, manufacturing, and municipal sectors. The team consists of industry experts with a commitment to quality.
How is pricing determined?
Pricing depends on several factors: type of service (e.g., powder coating, anodizing, traffic signs), part size, quantity, and any custom requirements. For the most accurate estimate, send us your drawings, photos, and finish specifications.
What is the typical lead time for metal finishing orders?
Most projects are completed within 5 business days. Turnaround time varies by service (powder coating vs. anodizing), volume, and workload. Expedited services are available upon request.
Do you require minimum order quantity requirement?
We do not have strict minimums. Whether you need one prototype part or a high-volume production run, we can help. Larger batch sizes typically result in better pricing.
What quality standards does DMF follow?
We follow industry best practices for all types of services. Our team can meet MIL-SPEC, RoHS compliance, and other specifications based on your project needs. Quality checks are performed throughout every stage of production.
Can you provide a Certificate of Conformance (COC)?
COCs are provided upon request. A service fee may apply.
What types of metals can you finish?
Can you match custom colors or textures?
Do you provide surface preparation before the finish?
What are your accepted payment terms and methods?
Do you offer pickup, delivery, or shipping for all services?
How can I request a quote?
Company-Related