PTFE virgin white 55 Shore D
Virgin PTFE is renowned for its exceptional chemical resistance, non-flammable nature, and outstanding sliding properties, making it ideal for use in chemically aggressive or ultra-clean environments. Its non-elastic structure provides dimensional stability but limits its suitability under high mechanical loads or dynamic stress.
While virgin PTFE offers a wide operating temperature range, users should note its low thermal conductivity, high coefficient of thermal expansion, and relatively low load-bearing capacity when used as a bearing material. These properties should be considered during application design, especially in high-pressure or high-load sealing systems.
Technical Specifications
PTFE virgin 51 Shore D FDA white
Mechanical
Mechanical properties | Standard | Unit | Data-Moulded |
Density | ASTM D792 | g/cm³ | 2,14-2,18 |
Hardness-Shore D | ASTM D2240 | / | ≥ 51 |
Tensile Strength-CD* | ISO 527 | N/m㎡ | ≥ 24 |
Elongation at Break-CD* | ISO 527 | % | ≥ 250 |
Compressive Strength at 1% Deformation -CD* | ASTM D695 | N/m㎡ | 4-5 |
Deformation under Load at Room Temperature After 24 Hours at 13,7 N/m㎡- CD* | ASTM D621 | % | ≤ 17 |
Permanent Deformation Under Load After 24 Hours of Rest at Room Temperature -CD* | ASTM D621 | % | ≤ 9 |
Deformation under Load at 260℃ after 24 Hours at 41N/m㎡ | ASTM D621 | % | ≤ 32 |
Permanent Deformation Under Load After 24 Hours of Rest at Room Temperature -CD* | ASTM D621 | % | ≤ 19 |
Impact Strength IZOD | ASTM D256 | J/m | 153 |
Thermal
Thermal properties | Standard | Unit | Data-Moulded |
Service Temperature (Min-Max) | / | ℃ | -200/+260 |
Thermal Expansion Coefficient (Linear) 25 -100℃ | Similar to ASTM D696 | 10-5 (mm/mm)/℃ | 12 -13 |
Electrical
Electrical properties | Standard | Unit | Data-Moulded |
Dielectric Strength (Specimen 0,5 mm. Thick) | ASTM D149 | kV/mm | ≥ 40 |
Dielectric Constant at 60 Hz and 106Hz | ASTM D150 | / | 2,05-2,40 |
Volume Resistivity | ASTM D257 | Ω*cm | 1018 |
Surface Resistivity | ASTM D257 | Ω | 1017 |
Tribological
Tribological properties | Standard | Unit | Data-Moulded |
Dynamic Coefficient of Friction | DIN 1183 | / | 0,06 |
Wear Factor K | DIN EN ISO 62 |
2,90 | |
PV Limit at 3 n/min at 30 n/min at 300 m/min | / | N/m㎡*m/min | 2,4 4,2 5,7 |
*CD=Cross Direction
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