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RE: Secondary form coating.



Original poster: "Lau, Gary" <gary.lau-at-hp-dot-com> 

If your goal is to minimize the trapped air between/beneath the
windings, you want to use something with low viscosity.  Polyurethane
does this nicely and has stood the test of time for many, if not most
coilers.  And it does not require pre-treatment of the form.  Applying
polyurethane over the windings displaces all air (or so it would
appear).

The electrical properties of the Dip are unknown, and it's likely the
thicker Dip will not seep as thoroughly between the windings.

Gary Lau
MA, USA

 > Original poster: "Luke" <Bluu-at-cox-dot-net>
 >
 >Has anyone ever used Plasti Dip for a secondary coil form coating
(under
 >the wire)?
 >Plasti Dip is that liquid rubber in a can you coat tool handles etc.
with.
 >
 >Does it insulate well enough?  There are areas I would like to use it
in.
 >My form is already coated in Glytol.  But in the future thought Plasti
Dip
 >might work.  The rubbery consistency might allow the wire to sink into
it a
 >bit as it is wound.  This might help reduce the amount of air trapped
below
 >the wire and between windings.
 >
 >Thoughts??????
 >
 >Main question though, does it insulate well enough?
 >
 >Luke Galyan
 >Bluu-at-cox-dot-net
 >
 >
 >