How Hardware Startups Use Conformal Coating for Circuit Protection

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How Hardware Startups Use Conformal Coating for Circuit Protection

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In episode 91 of Hardware Startups with Fexingo, Lucas and Luna explore conformal coating — the thin protective layer that shields circuit boards from moisture, dust, and corrosion. They walk through a real example: a drone startup that lost 12% of field units to condensation before applying acrylic coating. Lucas explains the three main types (acrylic, urethane, silicone) and when to choose each, plus common application methods from manual spraying to selective robotic coating. Luna raises the gotcha: coating can trap heat and complicate rework. Listeners learn one specific decision rule — if your device operates in a high-humidity environment or sees thermal cycling, conformal coating is likely worth the 2-5% BOM cost increase. The episode closes with a practical tip on combining coating with potting for maximum protection. No fluff, just the engineering trade-offs every hardware founder should know. #ConformalCoating #CircuitProtection #HardwareStartups #PCBAssembly #DroneHardware #AcrylicCoating #UrethaneCoating #SiliconeCoating #SelectiveCoating #HumidityProtection #CorrosionPrevention #Rework #ThermalManagement #ManufacturingTech #Electronics #Business #FexingoBusiness #BusinessPodcast Keep every episode free: buymeacoffee.com/fexingo

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