Virgin PTFE

PRODUCT TYPE: PTFE Jointing & Sealing
COLOUR: White

Virgin Grade PTFE Virgin grade PTFE is made from virgin PTFE resin. This grade comes in sheets, rods and tubes. Typical applications include seals, gaskets or structural components where temperature or chemical resistance is essential. Used especially for application requiring high purity, non-contamination and exceptional dielectric properties.

Virgin PTFE

Virgin PTFE contains no fillers and has almost universal chemical resistance. It has
excellent insulating capabilities and high dielectric properties. Its high temperature
stability allows for continuous use at 260°C. Virgin PTFE has excellent low friction, nonstick
and release properties.


Applications:

· O-Rings
· Envelope gaskets
· Seals
· Bellows
· Linings (chemical)
· Valve seats


Physical Properties:

Specific Gravity: g/cm³ 2.18

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Max Continuous Operating Temp: °C 260

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Max Short Term Operating Temp (3-4hrs): °C 310

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Tensile Strength: Mpa 28

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Hardness: Rockwell M 65

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Co-efficient of thermal expansion: m/(m.k) x 10¯ 6 125

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Dielectric Strength: KV/mm 59

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Surface Resistivity: Ohms >10^7

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Flammability UL94: 530

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Food Grade: FDA Yes


Typical Physical Properties

Thickness 1.5mm
Density 1.4g/cc
Tensile Strength ASTM F152 11MPa
Compression ASTM F36 40%
Recovery ASTM F36 30% min
Residual Stress DIN @ 175° C
25MPa
Creep Relaxation
ASTM F38 35%
Gas PermeabilityDIN 3535 <0.02cc/min
Liquid LeakageASTM F37 0.23ml/hr