Soldermask is most commonly green in color but nearly any color is possible Another reasons: based on old military requirements and standard, UV (ultra-violet)

Soldermask is most commonly green in color but nearly any color is possible Another reasons: based on old military requirements and standard, UV (ultra-violet) sensitive photopolymers and LPISM technology patent story https://electronics.stackexchange.com/questions/82669/why-are-circuitboards-traditionally-green https://electronics.stackexchange.com/questions/82669/why-ar...