On Feb 15, 10:25*am, (Scott Dorsey) wrote:
Avery Comarow wrote:

On Feb 13, 10:41=A0pm, "Richard Knoppow" wrote:
=A0 =A0 =A0At some time in the recent past there was a discussion
in this or the antique radio group about coil dope. As a
result I tried making some. ...What I did was to dissolve polyfoam shippi=
ng material
in a mixture of MEK and xylol. I chose these two solvents
because both were listed on the lable of some old commercial
coil dope.

Richard Knoppow

Proportions, please?

When I was a kid, we just added styrofoam to toluene until we got about the
right viscosity. *I have coils that I varnished with that stuff thirty years
ago which are still just fine.
--scott

--
"C'est un Nagra. *C'est suisse, et tres, tres precis."

Tolulene runs about 13-15 bucks a gallon at Home Depot, Menards, etc.
You won't ever run out of it if you buy a gallon can!
On top of that, a trick many racers use is to add some to gasoline to
up the octane. In Baja races in Mexico you never know what the octane
of the stuff you are getting may be.

I have digressed, I see...a habit as I age. In any case, I have also
mixed a small amount of tolulene with dried up tubes of plumbers goop
in order to reactivate the stuff. Afterall, drying goop is because of
the evaporation of tolulene in the first place.