Why are Printed Circuit Boards green?

Did you know that the vast majority of PCB’s are green? But, why are printed circuit boards green? It is due to the solder mask, which protects the copper circuits printed on the fibre glass core to prevent short circuits, soldering errors, etc. The colour of the solder mask gives the board its appearance. Why are printed circuit boards green? There are different theories on why it is traditionally green including the colour or the resins originally used to manufacture PCB’s, the army’s role in the development of PCB’s in the 1950’s or simply industry convention. Do Printed Circuit Boards have to be green? PCB’s do not have to be green. Different colours can be useful to distinguish different PCBs or to customise them. ABL Circuits offer coloured printed circuit boards. Green, Blue, Black, Red and White are available for standard production or we can produce bespoke colours or corporate colours as required. Take a look at our 10 most frequently asked questions to find out more about ABL’s printed circuit boards.

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