PTFE has the lowest coefficient of friction of any known solid material and melts between 260°C and 327°C. It's fairly hard and fairly stiff too, so it's ideal for
RepRap parts including things low friction bushings to main assembly parts.
For more details, see the
Wikipedia entry on PTFE.
Availability
PTFE rods suitable for
RepRap extruders can be purchased from:
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