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Printed Circuit Board Assembly & PCB Design Forum

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Removal of silk screen on PCB??

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#55647

Removal of silk screen on PCB?? | 23 July, 2008

Afternoon all, wondering if anyone can suggest a process for the localized removal of silk screen wording from a PCB. I have tried using a scalpel successfully but that it too time consuming and prone to error if an operator were to do it. Obviously a magic chemical would be best to swab on and wipe off. The area is letters about 9mm x 4mm. Thanks...

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#55648

Removal of silk screen on PCB?? | 23 July, 2008

On or off a pad? If on pad just take a soldering iron and some solder to it. Wick off to relevel.

If off a pad - why remove? (just curious)

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#55660

Removal of silk screen on PCB?? | 24 July, 2008

Not on a pad, just off the mask. I cant tell you why, then I would have to kill you! :)

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#55661

Removal of silk screen on PCB?? | 24 July, 2008

We assume the silk screen is epoxy. If so,: * Easiest: 'black-box' the undesired area by printing epoxy on top of the undesired area. You could use a stamp-pad easily. * Fairly-easy-but-messy: use a Dremmel-type tool to remove the undesired area. This will blank the board surface around the area, but compared to using a X-Acto knife, it will look wonderful. * Not so easy but still messier: use HCl under a hood to remove the undesired area. This will blank the board surface around the area and require neutralizing the acid.

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#55663

Removal of silk screen on PCB?? | 24 July, 2008

Yea I was thinking of covering instead of removing also. Thanks

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#55674

Removal of silk screen on PCB?? | 24 July, 2008

I'm already dead - that's why I'm in this industry.

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