Re: flash copper and copy chrome help
You can't activate nickel with pickle #4, you have to use sulfuric at a low concentration like 15% for just a few seconds. If you are flash coppering for an hour, you probably only have about .0001" of plate and it doesn't take much to blister it. Like said above, start out with the satin or flash copper for an hour at a time for 4 or 5 hours sanding lightly between sessions.
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