Parylene Removal: Precision Micro-abrasion

Parylene removal by micro-abrasion is the industry’s most effective method for selective repair and rework. Because Parylene is chemically inert and highly resistant to solvents, wet stripping techniques are ineffective. Precision micro-abrasion offers a controlled, mechanical way to expose connectors, pads, and keep-out zones without damaging surrounding components.

Vaniman Problast micro-abrasion system for conformal coating and Parylene removal in PCB repair and rework.

Why Parylene is Difficult to Remove

Parylene is a pinhole-free, chemically resistant coating. These properties make it highly reliable in service, but also extremely challenging to remove. Traditional methods like solvent stripping or thermal techniques do not work. Therefore, rework and repair require a mechanical approach that balances precision and safety.

The Micro-abrasion Removal Process

Micro-abrasion uses a fine abrasive media delivered through a controlled air stream to gently erode Parylene coatings. Operators can target specific areas, removing coating layer by layer until the component or pad is exposed.

  • Precision: Removes coating selectively without harming adjacent components.
  • Control: Adjustable airflow, nozzle size, and abrasive type allow tailored removal for different assemblies.
  • Effectiveness: Works on all grades of Parylene (N, C, D, F) where other removal methods fail.

See our micro-abrasion systems for Parylene removal applications and our removal services for Parylene.

Applications in PCB Repair & Rework

Micro-abrasion enables repair teams to carry out tasks that would otherwise be impossible with solvent-based methods:

  • Exposing connector contacts for soldering or replacement.
  • Clearing coating from test points or pads for diagnostics.
  • Repairing coating defects by removing and recoating defined areas.
  • Supporting component rework on mission-critical PCBs.

Summary

Parylene removal by precision micro-abrasion provides a safe, controlled, and highly effective method for PCB rework. By combining advanced equipment with skilled operators, coatings can be removed exactly where needed, ensuring reliability and maintaining board integrity.

Why Choose SCH Services?

Partnering with SCH Services means more than just outsourcing — you gain a complete, integrated platform for
Conformal Coating, Parylene & ProShieldESD Solutions, alongside equipment, materials, and training, all backed by decades of hands-on expertise.

  • ✈️ 25+ Years of Expertise – Specialists in coating technologies trusted worldwide.
  • 🛠️ End-to-End Support – Guidance on coating selection, Parylene grades, masking, inspection, and ProShieldESD integration.
  • 📈 Scalable Solutions – From prototype batches to high-volume production, SCH grows with your needs.
  • 🌍 Global Reach – Responsive support across Europe, North America, and Asia.
  • Proven Reliability – Built on quality, consistency, and customer satisfaction.

📞 Call: +44 (0)1226 249019
Email: sales@schservices.com
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Note: This article provides general technical guidance only. Final design, safety, and compliance decisions must be verified by the product manufacturer and validated against the applicable standards.