Archive of the former Yahoo!Groups mailing list: Homebrew PCBs
Subject: Re: [Homebrew_PCBs] Cermark Laser marking for PCB resist?
From: Cornelis van Rensburg <cornelis.vanrensburg@...>
Date: 2016-09-18
No, the paint would not make a great solder mask. the paint removal by laser only works well because the laser lacks to power to harm the copper.
if the copper is etched away the laser would burn away the paint but also char the FR4
unless you mean only burning away the paint on the solder pads. but you would not get nice lettering etc
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