Filled PTFE datasheet (page1) [ Datasheet page 2 ] Property Method Unit unfilled FILLED LV 2030 LVG 2030 LCG 3030 LCG 3040 Type of filler - % approx. - - - 25 glass 20 glass + 5 graph 25 carbon 35 carbon Specific gravity ASTM D792 - 2,17 2,23 2.18 2,10 2,10 Tensile strength ASTM D1457 N/mm2 30 16 15 15 15 Elongation at break ASTM D1457 % 300 260 200 180 80 Compressive strength 1% deformation ASTM D695 N/mm2 4,5 7,0 7,0 10,0 11,0 Deformation under load 14N/mm2 for 24h - Total P ASTM D621(2) % 14,5 9,5 6,8 6,5 3,7 Deformation under load 14N/mm2 for 24h - Total T ASTM D621(2) % 16,5 13,5 7,0 5,5 3,4 Deformation under load 14N/mm2 for 24h - Permanent P ASTM D621(2) % 8,0 5,0 5,0 3,0 1,0 Deformation under load 14N/mm2 for 24h - Permanent T ASTM D621(2) % 8,5 7,8 4,0 2,8 1,1 Hardness (shore D - 15 sec) ASTM D2240 - 55 63 60 63 65 Friction coefficient dynamic ASTM D3028 (1) - 0,05 0,07 0,06 0,06 0,06 Wear factor (K) - mm3sec/Nmh 1 0,00071 0,00106 0,00082 0,00070 PV limit at 0,05 m/sec - Nm/mm2sec 0,040 0,365 0,400 0,365 0,330 PV limit at 0,50 m/sec - Nm/mm2sec 0,070 0,475 0,545 0,460 0,400 PV limit at 5,00 m/sec - Nm/mm2sec 0,095 0,590 0,800 0,545 0,500 Coefficient of linear thermal expansion from 25 to 100°C ASTM E831 °C-1 16x10-5 10x10-5 11x10-5 9,5x10-5 9x10-5 Thermal conductivity ASTM D2214 W/mK 0,23 0,43 0,62 0,64 0,68 Dielectric strength (short-time air thickness 0,5 mm) ASTM D149 kV/mm 55 13 2,5 - - Dielectric constant (50-109 Hz) ASTM D150 - 2,1 2,5 3,3 - - Dissipation factor ASTM D150 - <0,0002 0,003 0,0025 - - Volume resistivity ASTM D257 Ohm/cm 1017 1016 1015 103 103 Surface resistivity(3) ASTM D257 Ohm 1017 1016 1014 103 103

Note:
P - Designates properties parallel to molding direction
T - Means perpendicular to molding direction
(1) Speed 0,08 m/sec; load 0,1 N/mm2, sliding surface steel roughness Ra = 0,5 micron (micrometer)
(2) Superceded standard
(3) 100% relative humidity
All the determinations have been made at 23°C