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Formula: PTFE 25% GF
Form: Rod
Material: PTFE filled with Glass
Commodity: Polymers
PTFE filled with Glass Rods are made from a composite material that has a balance of properties by combining polytetrafluoroethylene (PTFE) polymer with glass filler. We offer 37 variations of these versatile rods that provide chemical inertness and low friction, while the glass enhances mechanical strength and rigidity. The percentage of glass filler can be varied to tune mechanical and thermal properties for applications like bearings, seals, valve seats and electrical insulators. This makes PTFE filled with Glass Rods valued across industrial, chemical and medical settings.
Technical Data Sheet Safety Data Sheet Tolerance Properties
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Tolerances

Rod
Diameter +20% / -10%

Material Properties for Polymers

Chemical Resistance
Element Value
Acids - concentrated Poor
Acids - dilute Good
Alcohols Good
Alkalis Good-Fair
Aromatic hydrocarbons Good
Greases and Oils Good
Halogenated Hydrocarbons Good
Halogens Good
Ketones Good
Mechanical Properties
Element Value
Coefficient of friction 0.08-0.1
Hardness - Rockwell D60-70 - Shore
Elongation at break( % ) 100-300
Tensile modulus( GPa ) 1.7
Izod impact strength( J m⁻¹ ) 144
Tensile strength( MPa ) Jul-20
Electrical Properties
Element Value
Dielectric constant @1MHz 2.2-2.35
Dissipation factor @ 1kHz 0.003
Dielectric strength( kV mm⁻¹ ) 40
Surface resistivity( Ohm/sq ) 10¹⁵
Volume resistivity( Ohmcm ) 10¹⁶
Physical Properties
Element Value
Flammability V0
Resistance to Ultra-violet Good
Limiting oxygen index( % ) 95
Water absorption - over 24 hours( % ) 0.15
Density( gcm⁻³ ) 2.25
Thermal Properties
Element Value
Upper working temperature( C ) 260
Thermal conductivity( W m⁻¹ K⁻¹ ) 0.33-0.42@23°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 75-100

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