Virgin PTFE Sheet

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Virgin PTFE Sheet

Properties

Physical- Mechanical

PropertiesUnit MethodData Molded
Density g/cm³ASTM D7922,14 - 2,18
Hardness - Shore D/ASTM D2240≥ 51
Tensile Strength - CDN/mm²ISO 12086
ISO 527
≥ 24
Elongation at break - CD%ISO 12086
ISO 527
≥ 250
Compressive strength at 1% deformation - CDN/mm² ASTM D695 4 - 5
Deformation under load at room temperature after 24 hours at 13,7 N/mm2 - CD%ASTM D621≤ 17
Permanent deformation as above after 24 hours of rest at
room temperature - CD
%ASTM D621 ≤ 9
Deformation under load at 260 °C after 24 hours at 41 N/mm²- CD%ASTM D621≤ 32
Permanent deformation as above after 24 hours of rest at
room temperature - CD
%ASTM D621 ≤ 19
Impact strength IzodJ/mASTM D256153

CD=Cross Direction

Tribological

PropertiesUnit MethodData Molded
Dynamic coefficient of friction/ASTM D1894
ASTM D3702
0,06
Wear factor K/ASTM D37022.900
PV limit
at 3 m/min
at 30 m/min
at 300m/min
N/mm² • m/min/
2,4
4,2
5,7

Thermal

PropertiesUnit MethodData Molded
Service Temperature (min - max )°C /- 200 / + 260
Thermal expansion coefficient ( linear ) 25 - 100°C10⁻⁵(mm/mm)/ °CSimilar to ASTM D6912 - 13

Electrical

PropertiesUnit MethodData Molded
Dielectric strength (specimen 0,5 mm thick) KV/mmASTM D149 ≥ 40
Dielectric Constant at 60 Hz and 10⁶ Hz/ASTM D150 2,05 - 2,10
Volume Resistivity Ω • cmASTM D25710¹⁸
Surface Resistivity ΩASTM D25710¹⁷

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