FILLED PTFE

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Carbon-Filled PTFE

On its own PTFE has an excellent coefficient of friction, elasticity, and abrasion resistance, but it has relatively poor mechanical strength and can fail in high photovoltaic service. However with Carbon Filled PTFE the result is excellent mechanical and wear properties while retaining excellent frictional properties, and it is a popular choice for backup rings in both dynamic and high pressure applications. Carbon filled PTFE also offers good thermal conductivity, low permeability, and is electrically conductive -a good choice fo anti-static application. We’re your premier carbon-filled PTFE supplier.

Glass-Filled PTFE

Glass-filled PTFE backup rings offer much improved compression and wear properties. Glass Filled PTFE is reinforced with glass fibers (varying between 5% and 40% depending on the needs of the application). When the filler amount increases so will the properties the filler offers (increased compressive strength, lower deformation under load), but the coefficient of friction properties of the material increases over that of virgin PTFE. We’re your premier glass-filled PTFE supplier.

 
 
 

PERFORMANCE CHARACTERISTICS

Specific Gravity 2.05 - 2.12 g/cm3 (IASTM D 792)

Tensile Strength 13 - 18 MPa (ASTM D 4894)

Elongation 90 - 300% (ASTM D 4894)

Shore D Hardness 60 - 66 (ASTM D 2240)

Deformation Under Load 5 - 7% (ASTM D 695)

Permanent Deformation 2 - 4% (ASTM D 695)

Flexural Modulus 1105 MPa

Coefficient of Static Friction 0.14 - 0.16

Coefficient of Static Friction 0.12 - 0.14

Volume Resistivity 10 - 4 Ohm / CM (ASTMD 257)

Service Temperature -200°C / +260°C

PERFORMANCE CHARACTERISTICS

Specific Gravity 2.23 - 2.26 g/cm3 (IASTM D 4894)

Tensile Strength 31 MPa (4600PSI) (ASTM D 4894)

Elongation >180% (ASTM D 4894)

Shore D Hardness 60 (BS EN 13000-2)

Compressive Strength 1% Deformation >9 MPa

Compressive Modulus 758 Mpa (ASTM D695)

Flexural Strength 13.4 MPa (ASTM D790)

Flexural Modulus 1310 MPa (ASTM D790)

Coefficient of Linear Thermal Expansion 7.7-11.2 x10-5°C (100°C) (ASTM D696)

Thermal Conductivity 10.6 x 10-4 cal/cm-sec-°C (C177)