Need to bodge-wire to a 6mil trace on a PCB... acetone to remove the soldermask?

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I gotta bodge-wire to two traces on a PCB, the traces are 6mil wide, so about 0.15mm. I purchased some 0.1mm diameter magnet wire. Usually for this kind of job I use a Xacto knife to scrape away the soldermask over the trace but for 6mil it seems... risky...

My research lead me to https://prototypepcbassembly.com/how-to-remove-soldermask-from-printed-circuit-boards/ which said acetone can be used.

Has anybody actually used this technique on a fully populated PCB? I can do it, and safely too.

Or is the knife still feasible?

There's two QFN motor driver ICs on there and one SOT223 sized voltage regulator and then everything else is passives.

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Posted: 6 months ago
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