100 PTFE / Teflon spacers/washers, 5 / 2 / 0.5mm

For sale 100 PTFE / Teflon washers/spacers

Dimensions:

• 5mm external diameter  (  a little over 3/16 "  )
• 2 mm inside diameter  ( 5/64 inch) 
• 0.5 mm thickness  ( 1/64 inch)
• Made from teflon sheet, these washers can be made larger if needed, but only in 0.5mm thickness.

PTFE is a thermoplastic polymer, which is a white solid at room temperature, with a density of about 2200 kg/m3. According to DuPont, its melting point is 600 K (327 °C; 620 °F).It maintains high strength, toughness and self-lubrication at low temperatures down to 5 K (−268.15 °C; −450.67 °F), and good flexibility at temperatures above 194 K (−79 °C; −110 °F).PTFE gains its properties from the aggregate effect of carbon-fluorine bonds, as do all fluorocarbons. The only chemicals known to affect these carbon-fluorine bonds are highly reactive metals like the alkali metals, and at higher temperatures also such metals as aluminium and magnesium, and fluorinating agents such as xenon difluoride and cobalt(III) fluoride.