Subject: Re: Best insulator?
Date: Sat, 7 Sep 2002 00:50:06 +0100
NNTP-Posting-Date: 6 Sep 2002 23:46:13 GMT
X-Newsreader: Microsoft Outlook Express 5.50.4522.1200
"Sir Charles W. Shults III" wrote in message
> This depends on the application. Kapton has excellent resistance and
> stability and there are no known solvents for it. Mylar has one of the
> insulation breakdown voltages and is also extremely inert. PTFE
> known as Teflon) is an excellent insulator, although not as good as Mylar
> Kapton, but finds many uses in RF equipment. They even make Teflon
> board stock specifically for very high frequency work. But the cost of
> is one of the drawbacks.
> Nylon is cheap and easy to form, has pretty good chemical resistance,
> pretty fair resistance. It can be made into a great variety of forms such
> wire ties, anchoring hardware, and insulators for transistor sockets. It
> really suitable for high voltage work though, and for most aerospace and
> quality electrical work, Teflon insulated wire seems to be the rule.
> In high voltage situations, Mylar is king because of its extreme
> to dielectric puncture. In space hardware, Kapton is to be avoided as it
> lose up to half its mass in a vacuum.
Thanks for the info. Are mylar stand-offs, screws, washers etc obtainable,
and how easy is mylar to drill and machine?
> Chip Shults
> My robotics, space and CGI web page - http://home.cfl.rr.com/aichip