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Old 15th February 2012, 06:31 PM   #1
wanders is offline wanders  United States
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Default Scratched PCB

I'm fairly new at diy audio. In re-habbing a large, vintage tape deck, I managed to put a small scratch across the solder side of one of the printed circuit boards; it's a small,narrow scratch, but the copper trace can be seen. Probably not worth messing with, but I'd feel better if I coated it with some compound. Did a little research, but nothing is showing up. Would appreciate advice on how others usually handle this kind of problem?

Thanks
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Old 15th February 2012, 06:58 PM   #2
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You can buy a pen such as this one to repair your board, but I think I would just use nail polish.
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Old 15th February 2012, 07:18 PM   #3
wanders is offline wanders  United States
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Quote:
Originally Posted by sofaspud View Post
You can buy a pen such as this one to repair your board, but I think I would just use nail polish.
Good tip; thanks.
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Old 15th February 2012, 11:42 PM   #4
Enzo is offline Enzo  United States
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Or leave it alone. That coating is called solder mask. When they solder all the parts on the board, they use a wave solder machine. Basically it is a large tub of molten solder, adn they skim the board across it, soldering everything at once. They paint this stuff on the board to cover the copper where they don;t want solder sticking, otherwise they waste solder and potentially can cause unwanted solder bridges. You won;t be wave soldering.
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Old 16th February 2012, 11:50 AM   #5
marce is online now marce  United Kingdom
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nail Varnish II, you can match the colour these days as well
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Old 17th February 2012, 02:47 AM   #6
wanders is offline wanders  United States
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Bought a bottle of green nail polish, $2.00 -- perfect match. Checkout girls had some fun with me.
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Old 17th February 2012, 11:54 AM   #7
marce is online now marce  United Kingdom
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