Hi Barry,
Congratulations on your mount and your first telescope!
Teflon is a Dupont brand name for a type of plastic known as PTFE.
We purchase some of our engineering plastics from Dotmar here in Sydney -
http://www.dotmar.com.au/ptfe.html
You could give them a try to see if they have some suitable off-cuts or perhaps put a query on the ATM forum.
Someone might even have some spare pieces.
See
http://www.iceinspace.com.au/forum/f...splay.php?f=17
Best Regards
Gary Kopff
Mt Kuring-Gai NSW