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Passivation & Cleaning

We provide ASTM A967-compliant passivation and precision cleaning to ensure surface integrity, corrosion resistance, and downstream compatibility.

Citric and Nitric Passivation with Integrated Ultrasonic and Vapor Cleaning

We perform citric and nitric passivation per ASTM A967, supported by ultrasonic cleaning, DI rinse, vapor degreasing, and pickling. All cleaning operations use in-house filtered water and are integrated into process routings to ensure surface readiness for critical applications.

We offer both citric and nitric passivation in accordance with ASTM A967, integrated as part of broader process routings for precision wire components. Our cleaning processes include ultrasonic cleaning, DI rinsing, vapor degreasing, and pickling—tailored to meet the cleanliness demands of medical and high-reliability applications. All wash operations utilize our in-house filtered water system to maintain consistency and control. These finishing steps enhance corrosion resistance, remove residual contaminants, and prepare components for downstream coating, assembly, or packaging.

Specifications

  • Standards: ASTM-compliant passivation (e.g., nitric-based processes)
  • Cleaning Methods: Ultrasonic cleaning, multi-stage wash systems
  • Water Quality: High-purity DI water systems
  • Contaminant Removal: Oils, particulates, free iron
  • Materials: Stainless steel, Nitinol, specialty alloys
  • Drying: Controlled drying processes
  • Integration: Final or intermediate process step

Frequently Asked Questions

Passivation removes free iron and enhances corrosion resistance by strengthening the oxide layer.

After processing, parts are cleaned to meet medical and high-spec application requirements, using validated processes.

Yes, our passivation processes are aligned with applicable ASTM specifications.

Cleaning is done before and after finishing processes, depending on process flow and cleanliness requirements.

Yes. Cleaning processes can be validated per customer requirements.

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PARTNER WITH US

Let’s build what others can’t.

Whether you’re developing a breakthrough device or scaling a complex assembly, Motion Dynamics has the expertise to help you get it done right. Explore how our engineering team can support your next precision build.

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