Teflon

Materiale Data	Hårdhed Shore	Trækstyrke N/mm2	Elasticitetsmodul %	Temp.  C	Datablad  PDF
PTFE VIRGIN	Shore D	25-31	300-400	-200/+260C
PTFE  BRONCE 40%	Shore D	23-28	200-250	-200/+260C
PTFE  GLAS 15% MOS	Shore D	15-20	220-270	-200/+260C
PTFE GRAFIT	Shore D	15-20	170-250	-200/+260C
PTFE KUL/GRAFIT 2%/23%	Shore D	14-18	70-120	-200/+260C
PTFE KUL FIBER 10%	Shore D	23-27	250-300	-200/+260C
PTFE EKONOL 10%	Shore D	>13	>180	-200/+260C

PTFE
This material is known as Teflon, the trademark of DUPONT Company. PTFE material does have the lowest coefficient of friction. Due to the low friction coefficient and the high wear resistance, it performs well on poorly lubricating conditions as well  as high sliding speeds. PTFE can be used in temperatures between -200°C and +260°C.It  has very good resistance to all chemicals excepts alkaline metals, high pressure-temperature chlorotriflour and basic flourines. Hardness and elasticity  make the material to be used widely in hydraulic aplications.

Depending onto the application; glass, graphite, cabon, MoS2 and bronze filled PTFE can be used to increase mechanical and psysical properties. The influence of the hydraulic media, the behavior in contact with the counter surface and the form stability depending on the operating temperature  are the important properties when selecting the PTFE compound amoung the others.