Archive of the former Yahoo!Groups mailing list: Homebrew PCBs
Subject: Re: Vintage PCB toner transfer problems
From: leeleduc@...
Date: 2017-07-07
I use "Tarn-X". It's a cleaner for copper bottom pans and silverware. You can find it in the cleaners isle of the supermarket. Another brand that works well is Wrights Copper Cream.