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PTFE 25% Carbon Filled

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Sheet widths and lengths are cut to nominal dimensions; Rod lengths are also cut to nominal dimensions. Nominal cuts can be undersized by up to .200 inches. Cut-to-size items are non-refundable. See our return policy for more details. Contact us if you need precision cut sizes.

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Sheet widths and lengths are cut to nominal dimensions; Rod lengths are also cut to nominal dimensions. Nominal cuts can be undersized by up to .200 inches. Cut-to-size items are non-refundable. See our return policy for more details. Contact us if you need precision cut sizes.

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General Info

PolyTetraFluoroEthylene is a fluorocarbon-based polymer and is commonly abbreviated PTFE. While the most famous brand of PTFE is manufactured only by DuPont, several other manufacturers make their own brands of PTFE which can often be used as substitute material. PTFE has outstanding chemical resistance, a wide operating temperature range from cryogenic to 500F, resistance to weathering, high impact strength, low friction, electrical and thermal insulation, and self-lubricating properties. 25% Carbon filled PTFE has improved dimensional stability with a lower coefficient of linear thermal expansion and higher deformation under load. When compared to glass filled PTFE grades carbon filled grades are less abrasive to mating surfaces in bearing applications and can be used in strong alkali and in HF, where glass reinforced grades typically fail.

Click for more information on the complete line of PTFE Plastics

Key Properties

  • Excellent Chemical Resistance
  • Higher Thermal Conductivity than Unfilled PTFE
  • Improved Stiffness vs. Unfilled PTFE
  • Lower CLTE vs. Unfilled PTFE
  • No Abrasive to Mating Surface
  • Resistance to Weathering
  • Self-Lubricating
  • Very Low Coefficient of Friction
  • Wide Operating Temperature Range from Cryogenic to 500F

Limitations

  • High Loads
  • Subject to Creep, Cold Flow
  • Thermal Expansion
  • Tight Tolerance Applications

Applications

  • Bushings & Bearings
  • Chemical Processing Components
  • Electrical Components
  • Gaskets
  • Pump & Valve Components
  • Seals
  • Valve Seats
  • Wear Pads

Resin Trade Names

  • DuPont™ Teflon®

Manufacturer Trade Names

Boedeker Plastics, Inc. stocks & supplies plastic sheet, rod, tube, film and custom profiles and machine parts from these shapes that are produced from plastic resin. In many cases the manufacturer of the shape has their own product trade name. If your specification calls for a specific resin grade or manufacturer trade name, we can supply a shape made from that resin to meet your specification or suggest an equal. If you require a specific resin or brand it must be specified at the time of order.

Available Sizes

Available Colors

  • Black

Safety Data Sheet

Download Safety Data Sheet

Typical Properties of PTFE 25% Carbon Filled

DETAIL
Description Value
Material Type Semi-Crystalline Thermoplastic Fluoropolymer
Chemical Name PTFE Polytetrafluoroethylene
Additives 25% Carbon Fiber Filled
Color Black
PHYSICAL
Property Test Unit of Measure Value
Density ASTM D792 g/cm³ 2.08
  ASTM D792 lb/in³ 0.075
Water Absorption, 24 hrs, Immersion ASTM D570 % by wt. 0.05
MECHANICAL
Property Test Unit of Measure Value
Tensile Strength ASTM D638 psi 1,900
Tensile Elongation at Break ASTM D638 % 75
Flexural Strength ASTM D790 psi 2,300
Flexural Modulus ASTM D790 psi 160,000
Compressive Strength ASTM D695 psi 1,700
Compressive Modulus ASTM D695 psi 87,000
Hardness ASTM D785 NA Shore D62
Static Coefficient of Friction ASTM D-1894 NA .12-.17
Dynamic Coefficient of Friction ASTM D-1894 NA .09-.11
THERMAL
Property Test Unit of Measure Value
Coefficient of Linear Thermal Expansion ASTM D696 x 10-5 in./in./°F 6
Heat Deflection Temp ASTM D648 °C at 264 psi 65
  ASTM D648 °F at 264 psi 150
Melting Point Temp ASTM D3418 °C 335
  ASTM D3418 °F 635
Max Continuous Operating Temp °C 260
  °F 500
Minimum Operating Temp °C -200
  °F -328
Thermal Conductivity ASTM C117 BTU-in/ft²-hr-°F 4.5
  ASTM C117 x 10^4 cal/cm-sec-°C 15.5
Flammability Rating UL94 NA V-0
ELECTRICAL
Property Test Unit of Measure Value
Surface Resistivity ASTM D257 ohm/square 10^4
COMPLIANCE
Description Value
FDA No
USDA No
NSF No
3-A Dairy No
Canadian Food Inspection Agency No
USP Class VI No
OTHER
Description Value
UV Resistant Yes
Relative Cost $$$$
Machinability 5

Relative cost based on a scale of one dollar sign ($) as the lowest to ten dollar signs ($$$$$$$$$$) as the highest. Machinability based on a scale of 1 to 10, with 1 being the easiest and 10 being the most difficult to machine. NOTE: All information contained on www.boedeker.com, downloadable documents and printed literature is intended for technical reference only and considered to be accurate for reference purposes only. Boedeker Plastics, Inc. makes no guarantee and offers no warranty for fitness in use and strongly recommends the user validate any plastic, machined part, or product in a specific application for fitness in use.

TEFLON is a registered trademark of DuPont.

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