How Hardware Startups Use Conformal Coating to Prevent Board Failure

Today Lucas and Luna dive into conformal coating—a thin protective layer that hardware startups apply to circuit boards to shield them from moisture, dust, vibration, and corrosion. They explore why a small robotics startup that skipped this step suffered a 12 percent field failure rate in humid environments, and how a drone company used selective coating to cut warranty claims by 80 percent. They break down the three main coating types—acrylic, silicone, and urethane—when each makes sense, and why early-stage hardware teams often overlook this step until it's too late. Lucas explains the cost tradeoffs: coating adds roughly 50 cents to $2 per board, but can save thousands in returns and reputation. They also discuss automation options like robotic spraying versus hand brushing, and how founders can audit their manufacturing partners to ensure coating is done right. If you're building physical products, this is the kind of manufacturing detail that separates a launch from a recall. #HardwareStartups #ConformalCoating #PCB #Manufacturing #Electronics #Reliability #DroneCompany #WarrantyClaims #FieldFailure #Humidity #Acrylic #Silicone #Urethane #RoboticSpraying #ContractManufacturer #Business #FexingoBusiness #BusinessPodcast Keep every episode free: buymeacoffee.com/fexingo