PCB – How to Remove Solder Mask

pcbsolder-mask

I'd like to reuse a PCB in non-intended way and I have to remove the green solder mask to expose the copper traces in 1 x 3 cm area. Is there any safe method to do it without damaging the traces?

I've tried acetone first, then a bunch of other household chemicals, but it is resistant.

Best Answer

Google "fiberglass brush pencil", once you try that you won't want anything else.