Coloured Copper Clad

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#1
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Have seen black FR4 copper clad bored for light blocking, night vision and aerospace applications at an industrial level, but is there anyone retailing Coloured copper clad on a smaller scale?

�The poorest man may in his cottage bid defiance to all the forces of the Crown."
-William Pitt the Elder (1763)

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It's not the FR4 itself that is coloured, but the solder mask.

Leon Heller G1HSM

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Hate to disagree, but I believe its the board in some cases
http://www.currentcomposites.com...

�The poorest man may in his cottage bid defiance to all the forces of the Crown."
-William Pitt the Elder (1763)

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Quote:

It's not the FR4 itself that is coloured, but the solder mask.

Not always. Look at these, in FR4 or CEM:

http://cgi.ebay.com/9-shts-Copper-Clad-Laminate-FR-4-052-BLUE-6-x-9-DS_W0QQitemZ310204241332QQcmdZViewItemQQptZLH

http://cgi.ebay.com/8-shts-Copper-Clad-Laminate-CEM-047-BLUE-6-x-9-SS_W0QQitemZ310204244878QQcmdZViewItemQQptZLH

I have bought some of this material myself. It is blue all the way through.

Randy

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Come to think of it, you are right; I picked up some blue material many years ago at a radio rally. It's usually the solder-mask, though.

Leon Heller G1HSM

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Years ago Bob Pease stated that blue PCB had higher leakage than other colors. For analog this is worth being aware of.

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Here you go.. they seem to offer Black

http://www.jjorly.com/black_g10_fr4.htm