I'd like to find one too. At the Dynart website (I think), he mentions using some Testor's spray enamel as conformal coating. Got me thinking. What if you used small adhesive dots or tape to cover the solder pads, then spray a mask or coating on, then remove the dots. Problem is, the smallest dots I've found so far are 1/4"...much too large. I thought of using old style PCB layout aids, but all I can seem to find are rub on transfer stye, and I'm worried that the vigorous rubbing needed to remove them would also remove whatever I sprayed on the board. Josh -- A common mistake that people make when trying to design something completely foolproof is to underestimate the ingenuity of complete fools. -Douglas Adams Dal Wheeler wrote: > What I would like is a simple homebrew method for applying a solder mask. -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu