Technical Articles (Knowledge Hub)
Expert Guides on Conformal Coating & Parylene
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Conformal Coating Processes Hub
Discover the essential steps that ensure reliable PCB protection with conformal coatings. Each guide focuses on a key process area, offering practical methods and best practices.
- The Importance of Viscosity in Process Control – why controlling viscosity ensures consistent film build and coverage.
- Setting Up a Conformal Coating Production Line – planning equipment, workflow, and QA checkpoints.
- Conformal Coating Processes Overview – an introduction to the main coating application methods.
- How to Spray Coat a PCB with Conformal Coating – A Step-by-Step Guide.
- How to Dip Coat a PCB with Conformal Coating – A Step-by-Step Guide.
- How to Select a Conformal Coating Material – matching material properties to your application requirements.
- Conformal Coating Curing & Drying – how curing methods impact coating performance and throughput.
- Thickness Measurement Overview (Wet, Dry, Optical) – techniques to verify coating thickness for compliance.
- Surface Preparation & Cleanliness for Reliable Coating – cleaning and surface energy control for long-term adhesion.
Conformal Coating Equipment Hub
Conformal Coating Masking Hub
Discover key masking methods and materials used in conformal coating. Each article explains the masking approach, its best applications, and how to achieve consistent protection of keep-out areas.
- Conformal Coating Masking: Methods & Materials – tapes, dots, custom boots, latex and pre-cut shapes
- Conformal Coating Masking Strategies – barrier vs shielding
- Reusable Masking Boots – cost, speed, repeatability
- How to Mask a PCB with Boots – A How to Guide
- Liquid Latex & Hybrid Barrier Systems – sealing tapes & keep-out edges
Conformal Coating Design Hub
Learn how to design PCBs that are easy to mask, easy to coat and compliant with IPC/IEC standards. This hub covers the key layout rules, coating keep-out zones, component spacing, creepage and clearance requirements, and how to apply Design for Conformal Coating (DfCC / DFM) principles before manufacturing.
- Conformal Coating Design Guidelines – design intent, DFM/DfCC principles, avoid rework at layout stage
- Coating Keep-Out Zones & Masking-Friendly Layout – connector areas, gold fingers, clearance for tapes and boots
- Creepage & Clearance with Coating – IEC 60664, IPC-2221, coating “credit” and insulation design
- Coating Thickness Planning – defining target ranges, edge coverage, drainage and measurement methods
- Design for Coating Checklist – final PCB review before production
Conformal Coating Defects Hub
Explore the most common conformal coating defects and failure mechanisms. Each article explains the defect, its root causes, and practical prevention strategies.
- Pinholes, Bubbles & Foam – voids from trapped gas or poor curing.
- Orange Peel – dimpled surface caused by viscosity or spray issues.
- Dewetting – coating recedes, leaving bare patches from contamination.
- Delamination – adhesion loss due to surface prep or stress.
- Cracking – fractures from over-thickness or thermal mismatch.
- Corrosion & Ionic Contamination – residues and ions cause leakage and dendrites.
- Capillary / Wicking Around Components – unwanted flow under parts, breaching keep-outs.
Inspection & Quality Hub
- Conformal Coating Inspection: Standards & Methods
- UV (UVA) Inspection: Coverage & Edge Definition
- Thickness Verification Plans (AQL, Coupons, SPC)
🔍 Explore the Inspection & Quality Hub
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Removal & Rework Hub
Parylene Hub
Standards & Further Resources
Explore More SCH Knowledge
Continue building your understanding of conformal coating, Parylene and ProShieldESD with our technical FAQs, articles, bulletin library and blog insights.
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