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Formula: PTFE
Form: Powder
Material: Polytetrafluoroethylene (PTFE)
CAS Number: 9002-84-0
Commodity: Polymers
Mean Particle Size: 20µm
PTFE Powder is a versatile fluoropolymer powder from our extensive range of advanced materials. With 54 variations to choose from, it offers an array of properties, including excellent chemical resistance, low friction and high thermal stability. This makes it ideal for applications such as coatings, linings, additives and lubricants across industries like aerospace, automotive, chemical processing and more. Whether seeking an anti-stick surface or high-performance seal, PTFE Powder provides a range of solutions thanks to the diverse forms and specifications available.
Technical Data Sheet Safety Data Sheet Tolerance Properties
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Tolerances

Powder
Mean Particle Size Nominal
Minimum Particle Size Nominal
Maximum Particle Size Nominal
Maximum Particle Size Nominal
Particle Size D10 Nominal
Particle Size D50 Nominal
Particle Size D90 Nominal

Material Properties for Polymers

Chemical Resistance
Element Value
Acids - concentrated Good
Acids - dilute Good
Alcohols Good
Alkalis Good
Aromatic hydrocarbons Good
Greases and Oils Good
Halogenated Hydrocarbons Good
Halogens Good
Ketones Good
Mechanical Properties
Element Value
Coefficient of friction 0.05-0.2
Hardness - Rockwell D50-55 - Shore
Poisson's ratio 0.46
Elongation at break( % ) 400
Tensile modulus( GPa ) 0.3-0.8
Izod impact strength( J m⁻¹ ) 160
Tensile strength( MPa ) Oct-40
Electrical Properties
Element Value
Dielectric constant @1MHz 2-2.1
Dissipation factor @ 1MHz 0.0003-0.0007
Dielectric strength( kV mm⁻¹ ) 50-170
Surface resistivity( Ohm/sq ) 10¹⁷
Volume resistivity( Ohmcm ) 10¹⁸-10¹⁹
Physical Properties
Element Value
Flammability V0
Radiation resistance Poor
Refractive index 1.38
Resistance to Ultra-violet Excellent
Limiting oxygen index( % ) 95
Water absorption - over 24 hours( % ) 0.01
Density( gcm⁻³ ) 2.2
Thermal Properties
Element Value
Heat-deflection temperature - 0.45MPa( C ) 120
Heat-deflection temperature - 1.8MPa( C ) 54
Lower working temperature( C ) -260
Upper working temperature( C ) 180-260
Specific heat( J K⁻¹ kg⁻¹ ) 1000
Thermal conductivity( W m⁻¹ K⁻¹ ) 0.25@23°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 100-160

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