Re: Water absorbtion of Gray PVC

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: John <fireba8104-at-yahoo-dot-com> 

More work added to my long and growing list.
Cheers,
John

Tesla list <tesla-at-pupman-dot-com> wrote:
Original poster: "Dr. Resonance"


All PVC is hygroscopic especially when used at high frequencies. It's best
to sand interior and exterior, then paint with 3 separate of Glyptal or
other HV insulation. Interior sanding is rapidly accomplished by using a
sanding "flapper" on a dowel (or other extender) on an electric drill.

Some experimenters would say this is totally not necessary. I recall a
friend in high school who put over 90,000 miles on his Mustang without ever
changing the oil . . . . . . . . . . . . . . . .but, I can't recommend this
procedure.

Dr. Resonance


 >
 > Dose anyone know how much water Gray electrical PVC absorbs compared to
 > that of standard White PVC?
 >
 > Thanks,
 >
 > John