PCB Screen print removal?

bradholland · Sep 30, 2015

Hey Guys,
Does anyone have any tips for removal of screen print from pcb?

I've invested a little in getting some LCD screens tooled up that the factory has gone and plastered their web address all over, and I'd like to protect my investment for at least a little bit

I've tried using a sharp knife, which has worked but I have to be extremely careful and it's quite time consuming.

I've ordered a fibreglass pencil, not sure if that is going to help, not holding up much hope..

gyraf · Sep 30, 2015

There are as many screen-print inks as there are manufacturers - UV, 2-component etc. - hard to say anything in general about this.

have you tried solvents?

bradholland · Sep 30, 2015

was fearing that would be the case.

so far,
acetone, car/choke cleaner, lol

bradholland · Sep 30, 2015

gonna try my luck with some paint stripper next..

PRR · Oct 2, 2015

Brake Kleener will take more paints than carb cleaner.

But as said, there are many "paints" and some of them may set by polymerization not just drying; and tough polymers not just linseed-oil polymerization.

You might consider a mask and applying your own paint over the factory paint. Could look like one of Hilary's emails after all the good stuff has been redacted.