I have noticed a surprisingly large number of chemicals for tin-lead and
solder mask available at Fry's.  You might go look at that store if you have
one in your area.
Don't bother trying to ask for help in the store.

Best regards,
Giles

----- Original Message -----
From: Mike Knoll <knollm@LAFCOL.LAFAYETTE.EDU>
To: <PICLIST@MITVMA.MIT.EDU>
Sent: Thursday, May 04, 2000 8:55 AM
Subject: [PICLIST] [OT] PCB coatings


> I made a circuit boards, and now they're sitting there, with bare copper
> exposed to air.  I found some products used to coat boards to prevent
> shorts, but also thought oxidation may be a problem.  Has anyone had
> oxidation of bare copper boards?  The coatings in Mouser are $15/can,
> anyone found any cheaper solution?
>
> Mike
>