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At the heart of Irridite Treatment lies a chromate conversion coating reaction. When aluminum contacts the treatment bath, a thin layer of aluminum oxide and complex chromate compounds forms, creating a passive barrier that inhibits corrosion.
Bath Temperature: 18–24 °C
Immersion Time: 30–120 seconds
pH Range: 1.0–1.5
Chromate Concentration: 0.5–1.2 g/L
| Parameter | Typical Value | Impact on Coating |
|---|---|---|
| Temperature (°C) | 18–24 | Influences film thickness |
| Time (sec) | 30–120 | Affects uniformity |
| pH | 1.0–1.5 | Controls conversion rate |
| Chromate (g/L) | 0.5–1.2 | Dictates corrosion resistance |
Degreasing: Remove oils & contaminants.
Alkaline Cleaning: Use mild caustic solution.
Rinse: With deionized water to avoid ion deposits.
Immerse parts fully in the Irridite bath for specified time.
Agitation ensures uniform conversion.
Rinse immediately with cold deionized water.
Optional seal: Apply a silane or polymer seal to boost durability.
Chemical-resistant gloves
Safety goggles
Acid-resistant apron
Neutralize spent bath to pH 7 before disposal.
Follow local regulations (e.g., EPA for hexavalent chromium) and refer to “EPA Method 7196A” for accurate monitoring.
In aerospace, even minor corrosion can compromise safety. Irridite Treatment offers uniform film performance and is specified in MIL-DTL-5541F for aircraft components (<a href=”https://assist.dla.mil” target=”_blank”>MIL-DTL-5541F</a>).
Aluminum frames and engine parts benefit from rapid process times and low hydrogen embrittlement.
From valves to heat exchangers, the treatment extends service life in aggressive environments.
According to ASTM B117 salt spray tests, samples treated with Irridite show >1,000 hours before red rust appears .
| Coating Type | Thickness (µm) | Salt Spray (hrs) | Cost Index |
|---|---|---|---|
| Irridite Treatment | 0.3–0.8 | 1,000+ | 1.0 |
| Hard Anodizing | 25–100 | 500+ | 1.5 |
| Chromate Conversion Coating | 0.1–0.3 | 800+ | 0.8 |
For comprehensive metal finishing, consider:
Implementing Irridite Treatment in your finishing line delivers exceptional corrosion resistance without significantly altering dimensions. By following the outlined parameters and safety guidelines, you’ll achieve consistent, high-quality coatings that stand up to the toughest environments.
Q: What thickness does Irridite Treatment add?
A: Typically 0.3–0.8 µm of conversion coating without altering part tolerances.
Q: Is Irridite safer than other chromate coatings?
A: Yes, modern formulations can be trivalent-based, reducing hexavalent chromium risks.
Q: Can Irridite be applied to complex geometries?
A: Absolutely—bath agitation ensures full coverage on intricate parts.
Q: How do I test coating adhesion?
A: Perform cross-hatch tests per ISO 2409 or ASTM D3359 guidelines.
Q: What are common failure modes?
A: Inadequate cleaning, incorrect pH, or insufficient rinse can cause under-film corrosion.
At Super-Ingenuity, we specialize in end-to-end surface treatment solutions, including cutting-edge Irridite Treatment lines tailored to your production volume and quality standards. Our certified engineers optimize bath chemistry, automate process controls, and ensure environmental compliance. With over 20 years of experience serving aerospace, automotive, and industrial clients, we guarantee improved part performance and longevity. Ready to elevate your corrosion protection? Submit an RFQ today and let our experts design a turnkey finishing system that fits your needs and budget.
