Our Products

PTFE Virginal Sheets, Rods, Tubes, Foils

PTFE and Compounds

Virgin PTFE

Has a wide range of applications, especially where high mechanical strength is not required and where the use of compounds is not allowed. Because of its purity, inertness, high temperature resistance and electrical isolating properties, PTFE is primarily used in the chemical, food, pharmaceuticaland electrical engineering industries.

PTFE +25% Glass

Glass-filling slightly increases PTFE’s very low coefficient of friction but considerably increases resistance to wear and pressure. Used as construction material for bearing pads, ball seals, machine parts, and so on

PTFE Carbon

Carbon is one of the best fillers for chemical applications. It is an excellent heatconductor and very resistant to wear and pressure. Recommended for dynamical seals.

PTFE Ekonol 10%

Exceptional filler component to improve mechanical properties without increasing porosity. FDA-approved. Used for lip seals, back up rings, and so on.

PTFE +60% Bronze

This compound combines a low coefficient of friction with high pressure resistance. Both these properties make this a bearing material par excellence.
Property Standard Unit Virgin PTFE 25% Glass fibre 15% Glass-fiber 5% MoS2 25% Carbon 10% Ekonol 7% P84 5% Graphite 60% Bronze
Density ISO 12086 g/cm2 2,14 - 2,18 2,20 - 2,24 2,22 - 2,25 2,08 - 2,12 2,04 - 2,10 2,03 - 2,09 3,85 - 3,95
Hardness shore D DIN 53 505 Sh. D 52 - 60 56 - 64 54 - 58 62 - 68 53 - 66 56 - 60 63 - 68
Tensile strength (23°C) DIN 53 455 N/mm2 25 - 42 15 - 19 14 - 18 13 - 15 20 - 26 20 - 26 11 - 15
Elongation at break (23°C) DIN 53 455 % 250 - 400 220 - 260 200 - 230 40 - 70 250 - 320 220 - 300 110 - 140
Tensile modulus (23°C) DIN 53 457 N/mm2 400 - 800 1000 750 1150 750 800  
Coefficient of thermal expansion (20-150°C) 1/K 10-5 12 10 10,2 9 11 10 9  
Coefficient of thermal expansion (150-260°C)   1/K 10-5 16 13,4 13,5 12 14 13 12,3
Thermal conductivity (23°C) DIN 52 612 W/K.m 0,23 0.46 0,35 0,60 0,32 0,46 0,77
Deformation after 24h at 23°C - 15 ASTM-D621v % 16,00 12,50 12,00 4,00 12,00 8,00 4,20
Deformation after 24h at 260°C - 4 ASTM-D621 % 7,00 4,80 5,00 1,60 5,00 3,60 2,80
Compr. strength at 1% deformation (23°C) DIN 53 454 N/mm2 4,30 8,20 6,90 14,00 6,20 7,80 13,00
PV-limit 3 m/min   N.M mm2.min 2,50 23 25   18 25 21
PV-limit 30 m/min   N.M mm2.min 3,90 25 28   22 29 27
PV-limit 300 m/min   N.M mm2.min 5,50 31 32   26 32 28
Coeff. of friction - statical     0,14 0,18 0,15   0,18 0,15 0,17
Wear K 10-8   cm3.min 78 7,1 8,1