Parylene Application Hub
Overview of medical, PCB, aerospace, automotive and sensor use-cases.
The Parylene Application Hub brings together key use cases where Parylene coatings deliver reliable protection and performance – from medical devices and printed circuit boards to aerospace, automotive and advanced sensors.
Each application article explains why Parylene is used, the benefits over traditional conformal coatings and the design-for-coating and process considerations needed to achieve consistent, production-ready results.
Overview of the main Parylene coating applications across medical devices, PCB protection, aerospace and defence electronics, and automotive and EV systems.
Fast Links – Parylene Application Index
Use this index to jump directly to a summary of each Parylene coating application or open the full technical article.
Parylene Coating for Medical Devices – biocompatibility, sterilisation & thin-film protection
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Parylene Coating for PCB Protection – moisture, corrosion & dielectric performance
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Parylene Coating for Aerospace & Defence Electronics – harsh environments & mission-critical systems
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Parylene Coating for Automotive & EV Electronics – under-bonnet, battery & sensor protection
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Parylene Coating for Sensors, MEMS & High-Density Electronics – miniaturised, high-sensitivity devices
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Parylene Coating for Medical Devices – Summary
The Parylene Coating for Medical Devices article explains how Parylene supports biocompatible, thin-film protection on components that contact tissue or fluids. Typical examples include catheters, guide wires, surgical tools, sensors and implants.
- Biocompatible polymer film suitable for ISO 10993-driven applications.
- Excellent moisture and chemical barrier for long-term implanted or reusable devices.
- Thin, conformal coverage on fine features, lumens and sharp edges without adding bulk.
- Compatible with common sterilisation routes when specified and processed correctly.
Parylene Coating for PCB Protection – Summary
The Parylene Coating for PCB Protection article focuses on high-reliability printed circuit boards where Parylene’s vapour-phase process delivers a pinhole-free, uniform barrier on complex, high-density assemblies.
- Ultra-thin films (typically 5–25 µm) with high dielectric strength.
- Excellent resistance to moisture, condensation and corrosive atmospheres.
- True 3D coverage under components, inside gaps and around sharp edges.
- Well suited to boards where field failure or inaccessibility make reliability critical.
Parylene Coating for Aerospace & Defence Electronics – Summary
The Parylene Coating for Aerospace & Defence Electronics article covers electronics exposed to temperature cycling, pressure changes, humidity and contamination, where failure carries a high safety or mission impact.
- Protection for flight-control units, guidance electronics and mission-critical PCBs.
- Supports demanding reliability and environmental test expectations.
- Stable long-term performance in storage, deployment and field use.
- Can be aligned with aerospace and defence qualification programmes.
Parylene Coating for Automotive & EV Electronics – Summary
The Parylene Coating for Automotive & EV Electronics article addresses assemblies subjected to temperature extremes, road spray, condensation and fluids, especially as electrification increases electronics content.
- Under-bonnet ECUs, power electronics and battery-management systems.
- Sensors and control modules mounted in exposed or semi-sealed locations.
- Thin-film barrier that maintains creepage and clearance while boosting reliability.
- Approaches to integrating Parylene into automotive validation workflows.
Parylene Coating for Sensors, MEMS & High-Density Electronics – Summary
The Parylene Coating for Sensors, MEMS & High-Density Electronics article looks at miniaturised, sensitive devices where geometry, signal integrity and mass make protection challenging.
- Uniform thin films on microstructures, flex circuits and fine interconnects.
- Low-mass coating that preserves device response and accuracy.
- Suitable for pressure, flow, position and bio-sensing applications.
- Guidance on thickness, adhesion and cleanliness for small structures.
Explore Related Parylene Topic Hubs
Parylene Coating Hub
A deeper look at Parylene chemistry, properties and deposition processes, including Parylene types, thickness selection, masking and inspection.
Parylene Dimers Hub
Information on Parylene dimers (C, N, D, F / AF-4), purity, packaging and supply for lab trials through to high-volume production lines.
Conformal Coating Processes Hub
Compare Parylene vapour deposition with spray, dip and selective coating processes and understand when each
method is most appropriate.
Need Help Selecting the Right Parylene Application?
Choosing where to apply Parylene is often as important as choosing the coating itself. SCH can help you:
- Review product families and assemblies to identify where Parylene adds the most value.
- Define thickness, masking and cleaning requirements for each application area.
- Decide between subcontract coating and in-house Parylene capability.
- Plan qualification builds and reliability testing for new programmes.
Call: +44 (0)1226 249019 · Email: sales@schservices.com
Contact SCH to discuss your Parylene application ›
Explore Topic Hubs
Why Work with SCH for Parylene Applications?
SCH combines practical coating services with Parylene equipment, dimers and training, allowing you
to adopt Parylene at the pace and scale that suits your programme.
- Application-led approach – focus on where Parylene provides measurable reliability gains.
- Turnkey support – services, systems, materials and training from a single partner.
- Experience across sectors – medical, aerospace, automotive, industrial and defence.
- Pathway from prototype to volume – support as projects move from trials into full production.
Disclaimer: This hub provides general guidance only. Performance, suitability and compliance depend on the specific design, materials and environment. SCH Services can review assemblies and specifications to confirm the most appropriate Parylene coating approach.
