PRODUCT ／ 007 ／ COMPOSITE MATERIALS DRAWING № DWF-GP-007 ／ REV. A ／ 2026-03 MATERIAL PTFE + GRAPHITE

Graphite PTFE.

A composite with graphite added to improve PTFE's wear rate, thermal conductivity and thermal expansion. Friction stays low while wear resistance, heat transfer and creep resistance improve markedly — a grade suited to sliding bearings, valves and chemical pump components.

/ Composite Graphite Wear-resistant Thermal ↑
— Technical Drawing ／ Sheet 1 of 1

Dimensioned drawing

※ This drawing is a representative example · not a released part drawing
DWG.NO DWF-GP-007
SCALE 1:1 ／ Detail 20:1
PROJECTION 3rd Angle · ISO 128
UNITS Millimeters
FIG. 007 — GRAPHITE-MIXED PTFE · End view, Section A-A, and graphite dispersion Detail X. Rendered per ISO 128 conventions ／ 3rd angle projection ／ mm units.
— Product Plate

Product image

PLATE NO DWF-GP-007-P
SUBJECT Graphite-filled PTFE
MEDIUM Reference image
FIGURES 02 sheet(s)
Graphite-mixed PTFE sliding plate — a black PTFE layer on a copper base
Fig. 01 ／ Graphite-filled PTFE on a copper baseReference image
Graphite-filled PTFE sheet and pad reference sheet
Fig. 02 ／ Sheet · pads · machining examples · applicationsReference sheet
DU plate reference sheet
Fig. 03 ／ DU Plate — Graphitized PTFE ／ Copper BaseReference sheet
— Specification

Specifications

The table below describes a standard SKU. Every line is made to order against your drawing, load case and friction requirement. Ask us about special temperature or chemical duty.

Property Value Note
Base MaterialPer drawingFluoropolymer matrix
FillerPer drawingGrade specified by the customer
DensityPer drawingStandard grade · slightly below virgin
Coefficient of Friction (μ)Per drawingDry, at 10 MPa
Wear RatePer drawingMuch lower than virgin PTFE
Thermal ConductivityPer drawingHigher than virgin
Operating TemperaturePer drawingContinuous use
Compressive StrengthPer drawingAt 1% deformation
Tensile StrengthPer drawingASTM D638
Hardness (Shore D)Per drawingVaries with grade
Available FormsPer drawingØ10–200 · sheet up to 1000 · tube on request
Post-processingPer drawingSkiving · Turning · Milling
— Grade Comparison ／ Graphite Grades

Grades

VIRGIN / 01 · BASE Virgin PTFE μ 0.04 · Wear ref. GP-STD / 02 · STANDARD Standard grade μ 0.08 · Wear ↓ GP-HI / 03 · HIGH High grade μ 0.10 · Wear ↓↓ GRAPHITE ↑ ↓ WEAR RATE ↑ FRICTION (slight)
/ 01

Virgin PTFE— reference (no filler)

BASE· REFERENCE

Unfilled PTFE. Lowest friction (μ 0.04) and the best chemical stability. Suits static, lightly loaded and sealing duty.

/ 02

Standard Grade— standard grade

STD· PTFE + Gr

Keeps the friction behaviour while improving wear resistance. Mostly used for valve seats, slow sliding bearings and chemical pump parts.

/ 03

High Grade— for heavy load

HI· PTFE + Gr
Markedly better wear resistance and heat transfer. Used for sliding parts under heavy load and high temperature.
  • WearMuch lower wear rate than virgin · higher PV limit.
  • ThermalSheds frictional heat more readily.
  • CreepBetter creep resistance under static load — well suited to valve seats.
— Applications

Applications

/ CHEMICAL

Chemical Pump Parts

Impellers, seals and liners that take both wear and heat in strong acid, strong alkali and solvent service.

/ MECHANICAL

Sliding Bearing

Low and medium speed rotating or reciprocating parts that must run unlubricated, using the self-lubricating behaviour of graphite.

/ VALVE

Valve Seat

Seat rings for ball and gate valves where creep and wear resistance matter, at high pressure and temperature.

— Custom Manufacturing

Manufacturing inquiry

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