Homebrew PCBs

I think the gray you see on the toner is clay. Most gloss papers use a clay coating on the paper surface. I have found that using a bit of dish soap and a nylon abrasive pad (3m scrubber) will quickly remove the gray. I do this after I put on the toner transfer silk screen, to get rid of the gray. Then I give the board a quick spray of clear acrylic, top and bottom. On top to brighten the toner silk screen. On the bottom to act as a solder mask. I solder right thru the acrylic.

RD

[Non-text portions of this message have been removed]