RE: Water absorbtion of Gray PVC

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

Original poster: "Mccauley, Daniel H" <daniel.h.mccauley-at-lmco-dot-com> 


Your PVC doesn't need to be sanded or pre-coated.


 > Acrylic doesn't need to be coated does it? Mine looks cool as
 > is, I'd hate
 > to sand it and dull it's clearness.
 > ----- Original Message -----
 > From: "Tesla list" <tesla-at-pupman-dot-com>
 > To: <tesla-at-pupman-dot-com>
 > Sent: Monday, December 08, 2003 2:09 AM
 > Subject: Re: Water absorbtion of Gray PVC
 >
 >
 >  > Original poster: "Dr. Resonance" <resonance-at-jvlnet-dot-com>
 >  >
 >  >
 >  > 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
 >  >
 >  >
 >
 >
 >