PTFE

PTFE

Polytetrafluoroethylene

Polytetrafluoroethylene

Polytetrafluoroethylene, commonly known as PTFE or by the brand name Teflon™, is a high-performance synthetic fluoropolymer possessing a unique set of characteristics that make it indispensable for demanding industrial environments. 

PTFE is renowned for being one of the most versatile engineering plastics available, primarily due to its extreme chemical inertness, exceptional thermal stability, and the lowest coefficient of friction of any solid material.

Key Properties

Mechanical & Physical

  • Exceptional Chemical Resistance
    Virtually unaffected by most acids, bases, and solvents.
  • High Thermal Stability
    Maintains integrity at temperatures from -200°C to +260°C.
  • Ultra-Low Friction
    Often described as having the "slipperiness of wet ice on wet ice". The only known surface to which a gecko cannot stick.
  • Hydrophobic Nature
    Repels water and water-containing substances completely.

Chemical & Thermal

  • Excellent Dielectric Strength
    High insulation properties make it ideal for electrical applications.
  • Non-Stick Characteristics
    Very high "release" properties, almost no substance will adhere to it.
  • UV and Weather Resistance
    Does not degrade when exposed to sunlight or extreme weather.
  • Physiologically Inert
    Safe for use in food contact and medical implants.

COMMON APPLICATIONS

PTFE Extruded Virgin White Rod | Plastock
PTFE Extruded Virgin White Rod | Plastock
PTFE Rod | Plastock

PTFE Extruded Virgin White Rod

PTFE Extruded Virgin White Tube | Plastock
PTFE Extruded Virgin White Tube | Plastock

PTFE Extruded Virgin White Tube

PTFE Extruded Virgin White Sheet | Plastock
PTFE Extruded Virgin White Sheet | Plastock
PTFE Rod | Plastock

PTFE Extruded Virgin White Sheet

PTFE Extruded Virgin Etched One Side White Sheet | Plastock
PTFE Extruded Virgin Etched One Side White Sheet | Plastock
PTFE Rod | Plastock

PTFE Extruded Virgin Etched One Side White Sheet

PTFE 25% Carbon Filled Black Rod | Plastock
PTFE 25% Carbon Filled Black Rod | Plastock
PTFE Rod | Plastock

PTFE 25% Carbon Filled Black Rod

PTFE 25% Glass Filled White Rod | Plastock
PTFE 25% Glass Filled White Rod | Plastock
PTFE Rod | Plastock

PTFE 25% Glass Filled White Rod

PTFE Extruded Virgin White Rod | Plastock
PTFE Extruded Virgin White Rod | Plastock
PTFE Rod | Plastock

PTFE Extruded Virgin White Rod

PTFE Extruded Virgin White Tube | Plastock
PTFE Extruded Virgin White Tube | Plastock

PTFE Extruded Virgin White Tube

PTFE Extruded Virgin White Sheet | Plastock
PTFE Extruded Virgin White Sheet | Plastock
PTFE Rod | Plastock

PTFE Extruded Virgin White Sheet

PTFE Extruded Virgin Etched One Side White Sheet | Plastock
PTFE Extruded Virgin Etched One Side White Sheet | Plastock
PTFE Rod | Plastock

PTFE Extruded Virgin Etched One Side White Sheet

PTFE 25% Carbon Filled Black Rod | Plastock
PTFE 25% Carbon Filled Black Rod | Plastock
PTFE Rod | Plastock

PTFE 25% Carbon Filled Black Rod

PTFE 25% Glass Filled White Rod | Plastock
PTFE 25% Glass Filled White Rod | Plastock
PTFE Rod | Plastock

PTFE 25% Glass Filled White Rod

Technical Details

 TEST METHODVALUEVALUE (IMPERIAL)
PHYSICAL PROPERTIES
DensityISO 11832.14-2.20 g/cm³133.6-137.3 lb/ft³
Water Absorption (24h)ISO 62<0.01%<0.01%
Water Absorption (Saturation)ISO 62<0.01%<0.01%
MECHANICAL PROPERTIES
Tensile Strength at YieldISO 52720-40 MPa2,900-5,800 psi
Tensile Modulus of ElasticityISO 527400-600 MPa58-87 ksi
Elongation at YieldISO 52715%15%
Elongation at BreakISO 527200-400%200-400%
Flexural StrengthISO 178No FailureNo Failure
Flexural ModulusISO 178500-700 MPa472-101 ksi
Charpy Impact (Notched)ISO 17916 kJ/m²7.6 ft-lb/in²
Rockwell HardnessISO 2039-250-65 (Shore D)50-65 (Shore D)
THERMAL PROPERTIES
Melting TemperatureISO 3146327°C621°F
Heat Deflection Temp (1.8 MPa)ISO 7555°C131°F
Max. Service Temp (Long Term)260°C500°F
Min. Service Temp-200°C-328°F
Thermal expansion (CLTE) ISO 1135912-15 x 10⁻⁵/K6.7-8.3x 10⁻⁵ in/in/°F
Thermal ConductivityDIN 526120.25 W/(m·K)1.73 BTU·in/(hr·ft²·°F)
Flammability RatingUL 94V-0V-0
ELECTRICAL PROPERTIES
Dielectric StrengthIEC 6024320-60 kV/mm
Volume ResistivityIEC 6009310¹8 Ω·cm
Surface ResistivityIEC 6009310¹7 Ω
Dielectric Constant (1 MHz)IEC 602502.1
Dissipation Factor (1 MHz)IEC 60250<0.0001

These values are typical average values and should be used for material selection and design guidance only.

Technical Details

 TEST METHODVALUE
PHYSICAL PROPERTIES
DensityISO 11832.14-2.2 g/cm³
Water Absorption (24h)ISO 62<0.01%
Water Absorption (Saturation)ISO 62<0.01%
MECHANICAL PROPERTIES
Tensile Strength at YieldISO 52720-40 MPa
Tensile Modulus of ElasticityISO 527400-600 MPa
Elongation at YieldISO 52715%
Elongation at BreakISO 527200-400%
Flexural StrengthISO 178No Failure
Flexural ModulusISO 178500-700 MPa
Charpy Impact (Notched)ISO 17916 kJ/m²
Rockwell HardnessISO 2039-250-65 (Shore D)
THERMAL PROPERTIES
Melting TemperatureISO 3146327°C
Heat Deflection Temp (1.8 MPa)ISO 7555°C
Max. Service Temp (Long Term)260°C
Min. Service Temp-200°C
Thermal expansion (CLTE) ISO 1135912-15 x 10⁻5/K
Thermal ConductivityDIN 526120.25 W/(m·K)
Flammability RatingUL 94V-0
ELECTRICAL PROPERTIES
Dielectric StrengthIEC 6024320-60 kV/mm
Volume ResistivityIEC 6009310¹8 Ω·cm
Surface ResistivityIEC 6009310¹7 Ω
Dielectric Constant (1 MHz)IEC 602502.1
Dissipation Factor (1 MHz)IEC 60250<0.0001

These values are typical average values and should be used for material selection and design guidance only.

CHEMICAL RESISTANCE

 CATEGORYREPRESENTATIVE SUBSTANCERATINGNOTES
Acids (Weak)Acetic AcidACompletely inert.
Acids (Strong)Sulphuric Acid (98%)AResistant even at boiling temperatures.
AlcoholsEthanol, IsopropanolANo absorption or swelling.
Alkalis (Bases)Sodium HydroxideAImpervious to strong caustic solutions.
Aromatic HydrocarbonsBenzeneAExcellent resistance to solvent swelling.
Chlorinated SolventsMethylene ChlorideANon-reactive and maintains properties.
FuelsPetrol, DieselAIdeal for high-performance fuel lines.
KetonesAcetone, Methyl Ethyl Ketone (MEK)ANo chemical interaction.
Oxidizing AgentsChlorine GasAResistant to highly reactive oxidisers.
Water / SteamSuperheated SteamANo hydrolysis, excellent for steam seals.

RATING SCALE: 
A (Excellent): Little to no effect.
B (Good/Fair): Minor swelling or slight changes in properties; acceptable for short-term exposure.
C (Poor): Severe degradation or stress cracking. Not recommended.

CHEMICAL RESISTANCE

 CATEGORYEXAMPLERATING
Acids (Weak)Acetic AcidA
Acids (Strong)Sulphuric Acid (98%)A
AlcoholsEthanolA
Alkalis (Bases)Sodium HydroxideA
Aromatic HydrocarbonsBenzene / TolueneA
Chlorinated SolventsMethylene ChlorideA
FuelsPetrol, DieselA
KetonesAcetoneA
Oxidizing AgentsChlorine GasA
Water / SteamSuperheated SteamA

RATING SCALE: 
A (Excellent): Little to no effect.
B (Good/Fair): Minor swelling or slight changes in properties; acceptable for short-term exposure.
C (Poor): Severe degradation or stress cracking. Not recommended.

FAQ

SERVICES

Plastock has extensive experience in all cutting, laser and manufacturing techniques across a huge range of industries and materials using the latest technologies. With expert engineering knowledge and world class equipment, we can help with the design, development, fabrication and installation or your project. No job is too big or too small.

SERVICES

Plastock has extensive experience in all cutting, laser and manufacturing techniques across a huge range of industries and materials using the latest technologies. With expert engineering knowledge and world class equipment, we can help with the design, development, fabrication and installation or your project. No job is too big or too small.

Bonding Services | Plastock

BONDING

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