Archive of the former Yahoo!Groups mailing list: Homebrew PCBs
Subject: Re: Glue 2 pieces of copper clad back to back?
From: "sailingto" <sailingtoo@...>
Date: 2010-02-12
Barry, I went thru the same growing pains you are - except you have success with the photoresist. I never paid the price (money) for the photo setup.
By far and away the best paper is the Pulsar toner transfer paper - that stuff just floats off. I've used slick magazine paper with success and also the HP Presentation grade color laser paper is working good - just a hassle to get off. Got to soak 20 minutes or so.
the boards MUST be clean - but I would expect no cleaner than required for photo etching, but with the pre-sensitized board, it's already cleaned. I purchase my PCB stock from a dealer here in USA - last batch I got 20 lb for $31 USD shipped to me. It was a bunch of pieces, but the smallest piece was 3"X6" with several almost full sized sheets. Some was really too thin, but still a decent price - all double sided.
After sanding copper with 320 to 400 grit sandpaper, I do a really good job of cleaning with alcohol.
I never had very good luck with the iron myself - I've been using the laminator for a while now - very happy with it. In fact, so happy I ordered another as a spare. $25 was so cheap.
Good luck,
Ken