Homebrew PCBs

Bill Maxwell wrote:
> After opening a tube of silicone for its first use, try storing the 
> remainder of the tube in the refrigerator.  I find it keeps for months.
> Bill


   Same goes for most paints as well.

   For the neutral type guys look for the no odor variety.  Way more people buy 
it to not have to deal with the vinegar smell than are worried about a circuit 
board etc, so that's what it's usually marketed for..

   I don't think it's worth worrying about though, with a thin smear it's mostly 
gone in a few minutes.  Fairly sure the acid is basically gone when the smell 
is, its chemical action is what cures the silicone.  Bad for electronics from 
initial contact and trapped acid more than there's a whole lot of acid 
continuing to come from it..

   Pretty much has to be basically inert when dry, paints go over it with few if 
any having any problems.

   Making up 5-10 sheets myself here in just a few minutes, hope there's enough 
toner left in my printer.

Alan