Re: Foiling ??

[Jim <alarminex@xxxxxxx>]

On Oct 19, 8:37=EF=BF=BDpm, "Robert L Bass" <Sa...@xxxxxxxxxxxxxxxxxxxxx>
wrote:
> chasbo wrote:
>
> > For the first coat, I used a box (formerly containing Ademco # 39's or
> > 39-2's), placing it against the window frame, and with varnish on the b=
rush,
> > and the brush handle pressed against the side of the box, slid both the=
 box
> > and brush, in unison, down the frame...
>
> That's basically the same thing we did, except we would use a playing car=
d or
> a matchbook, depending on which was available. =EF=BF=BDHowever, I used t=
o make a mark
> on the glass with a light colored crayon before applying the varnish. =EF=
=BF=BDThis
> gave me a nice, straight line to follow with the foil. =EF=BF=BDOnce the =
foil was in
> place the mark was all but invisible.
>
> > When applying the the foil I used a rubber suction cup to hold the foil=
 on
> > the opposite side of the window...
>
> That's creative. =EF=BF=BDI used to simply stretch a bit of foil and smoo=
th it into
> the sticky track made by the first coat of varnish (aka foil protector). =
=EF=BF=BDOnce
> started, the foil would stay put as I smoothed it along the line.
>
> > WHen reparing foil breaks I would use Silver-Print, an expensive one or=
 two
> > ounce bottle containing silver suspended in solvent. =EF=BF=BDIt came w=
ith a brush
> > in the handle. =EF=BF=BDI simply applied a coat to the break, 1/2 inch =
on both
> > sides; when dried it completed the circuit. =EF=BF=BDOn cold winter gla=
ss the drying
> > took longer. =EF=BF=BDI would then coat the area again, apply another p=
iece of foil
> > to protect the silver-print and varnish once more.
>
> More creative ideas -- nice. =EF=BF=BDI never heard of Silver-Print befor=
e. =EF=BF=BDWhat is
> it's primary use?
>
> --
>
> Regards,
> Robert L Bass
>
I think it was and may still be used to make conductive lands on
printed circuit boards for in-field repair and hobbyist. I don't know
if it was used for or intended for anything else though.