[Prev][Next][Index][Thread]
RE: Foil Caps (was Cap Pr (fwd)
---------- Forwarded message ----------
Date: Sun, 02 Mar 1997 19:20:21 GMT
From: Robert Michaels <robert.michaels-at-online.sme-dot-org>
To: tesla-at-pupman-dot-com
Subject: RE: Foil Caps (was Cap Pr
[ ... ]
T>Now here is a problem. Two plastic sheetings. Both the same thickness
T>(builders yard stuff). One black one clear(ish) The clear is 3 times the
T>cost of the black. What is the difference ?
T>Can I use the black sheeting for a cap ? If the answer is no, I have wasted
T>a morning <Aggggh>
T>Ken Smith
T>Auckland
Black polyethylene?? Hell no! Not for all the tea in
China (or all the polyethylene in Dow Chemical Co.).
The blackness is due to =carbon= black. God save your
immortal soul (and mortal capacitors) if you use such
a dielectric.
The clear polyethylene is the dearer because it's
comparatively virgin (like my sister on her wedding day,
but that's another story). The black poly is invariably
recycled (from whatever) -- the blackness hides a multitude
of its sins (like adultery in the moonlight).
Yours for seeing clearly,
Robert Michaels