colouring PCB's

I am making some pcb's using FR4 boards and wanted to color them before screen printing. This is just a hobby run of a few boards but I wanted them black. Has anyone ever or seen reference to say die or vinyl dye being used?


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We've done black solder resist before now.


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Peter A Forbes

a fairly safe way to color a pcb is to spray using a polyurethane coating and then any color you want on top of it..pcbds are often surface protected with a clear coat of polyurethane..u can also try an acrylic conformal coat which is solvent removable..look up Humiseal co. in Queens NY aand ask them the same question..

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