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Custom Masking

Custom Masking

At CMF, we set ourselves apart with our industry-leading custom masking team. Masking…

Humidity Testing

Humidity Testing

Humidity Testing assesses how materials perform under high moisture conditions, ensuring components can…

Salt Fog Testing

Salt Fog Testing

Salt Fog Testing, also known as Salt Spray Testing or Accelerated Corrosion Testing,…

Copper Sulfate Testing

Copper Sulfate Testing

Copper Sulfate Testing checks for free iron on stainless steel surfaces, verifying the…

Custom Masking

At CMF, we set ourselves apart with our industry-leading custom masking team. Masking is offered as an add-on service to support customers who require different surface finishing results on specific areas of their parts.

Custom masking is a hands-on, detail-oriented craft. Our highly-trained team works in a state-of-the-art masking room equipped with cutting-edge tools. They comply with processes that enable us to handle the most complex parts—whether big or small. By integrating this service into your finishing order, we ensure that functionality is preserved and that your parts meet exacting quality standards, every time.



Humidity Testing

Humidity Testing assesses how materials perform under high moisture conditions, ensuring components can withstand humid environments without degradation. This testing is critical for applications where moisture exposure is a concern, such as outdoor equipment or electronics.

Salt Fog Testing

Salt Fog Testing, also known as Salt Spray Testing or Accelerated Corrosion Testing, exposes materials to salty conditions to evaluate corrosion resistance. This testing is essential for components used in environments with high salt exposure, such as marine applications or coastal regions.

Copper Sulfate Testing

Copper Sulfate Testing checks for free iron on stainless steel surfaces, verifying the effectiveness of passivation by ensuring no residual iron remains that could lead to corrosion. This test is a critical quality control measure for stainless steel components.

Advantages

  • Verifies material performance in high-humidity environments, ensuring reliability.
  • Helps identify potential degradation issues before deployment.

 Limitations

  • Results may vary depending on material composition and coating type.
  • Not a standalone indicator of overall durability; should be paired with other tests like salt spray.

Testing

  • Conducted per ASTM D 2247, exposing samples to high humidity for a specified duration to evaluate performance.

Specifications

  • Common Applicable Specifications
    • ASTM D 2247
    • ASTM 967 Practice B
  • NADCAP Specifications
    • ASTM D 2247
    • ASTM 967 Practice B

Advantages

  • Provides a reliable measure of corrosion resistance in salty environments.
  • Helps ensure long-term durability in harsh conditions.

Limitations

  • Results are accelerated and may not fully replicate real-world conditions over extended periods.
  • Requires careful interpretation to apply findings to actual use cases.

Testing

  • Conducted per ASTM B-117, with parameters including 2024-T3 bare sealed aluminum, exposed to a 5% salt solution at 95°F for 336 hours.

Specifications

  • Common Applicable Specifications:
    • ASTM B 117
    • ASTM 967 Practice C
  • NADCAP Specifications:
    • ASTM B 117
    • ASTM 967 Practice C

Advantages

  • Ensures effective passivation, enhancing corrosion resistance.
  • Provides a quick and reliable method to verify surface cleanliness.

Limitations

  • Specific to stainless steel; not applicable to other materials.
  • Requires careful handling of copper sulfate solution to ensure accurate results.

Testing

  • Conducted per MIL-STD-753 Method 102, applying copper sulfate to the surface to detect free iron through discoloration.

Specifications

  • Common Applicable Specifications:
    • AMS 2700
    • MIL-STD-753 Method 102
    • ASTM 967 Practice D
  • NADCAP Specifications:
    • AMS 2700
    • MIL-STD-753 Method 102
    • ASTM 967 Practice D

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