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>
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>
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
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,