Reliable Conformal Coating Services
for Complex PCBA

Typically between 25-75 microns (1-3 mils) for acrylics and urethanes, and slightly thicker for silicones (50-200 microns), depending on IPC-A-610 standards. We measure thickness using eddy current gauges on test coupons to ensure consistency across your production batch.

Yes. We physically mask connectors, switches, and test points using high-temperature tapes or custom fixture masking for manual brushing/spraying/dipping. For automated selective coating, we program the machine to create ±1mm precision keep-out zones around critical components.

Standard spraying relies on capillary action to reach under components, but coverage beneath BGAs is limited. For full underfill protection, we recommend a dedicated capillary underfill process before conformal coating, which creates a complete seal between the component and PCB.

All our coating materials contain UV tracers. We perform 100% visual inspection under UV black light to ensure complete coverage and identify any de-wetting or pinholes. Additionally, we conduct periodic adhesion tests (tape test per IPC-TM-650) and dielectric withstand voltage testing.

Choose Acrylic for easy rework and general humidity protection. Use Urethane for chemical resistance and abrasion protection in harsh industrial environments. Select Silicone for high-temperature applications (>125°C) or when you need flexibility for thermal cycling. We also offer Parylene for medical/ aerospace applications requiring ultra-thin, pinhole-free coverage.

Acrylics can be removed easily with solvent (e.g., isopropyl alcohol) for component rework. Urethanes require more aggressive solvents and mechanical scraping. Silicones are the most difficult to remove and often require specialized peeling tools or thermal methods. We can perform localized rework at component level while preserving the surrounding coating.