PTFE (Polytetrafluoroethylene)

Known as the gold standard, PTFE material is often the first choice for many advanced applications such as aerospace,  electronic, medical, chemical industry due to its superior lubricity, temperature and chemical resistance, biocompatibility and lowest coefficient of friction.
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Polytetrafluoroethylene (PTFE) is a synthetic fluoropolymer of tetrafluoroethylene,primarily consists of carbon and fluorine, that has numerous applications. White color, High-low temperature Resistance(-180~+260oC ), Superior chemical and thermal properties, Non-Stick, Low coefficient of friction, self-lubrication, good mechanical.

PTFE resins are fabricated to form products by a number of techniques, including ram extrusion, screw extrusion, compression molding, and paste extrusion with and extrusion aid. Although different, these techniques have three basic steps in common: cold forming, sintering, and cooling.

These materials can be used to make a variety of articles have a combination of mechanical, electrical, chemical, temperature, and friction-resisting properties unmatched by articles made of any other material. Dechengwang is dedicated to machine PTFE part, based on our highly experiences in machining and many PTFE grade, We are the parter you can count on!

Properties
  1. Low coefficient of friction;
  2. Flexibility at low temperatures and thermal stability at high temperatures,Broad working temperature range (500°F/260°C – -292°F/-180°C);
  3. Chemically resistant – all normal solvents, acids, and bases;
  4. Low dielectric constant and low dissipation factor;
  5. Non-flammability;
  6. Non-stick, Easy to clean;
  7. Long-term weathering;
  8. High arc resistance, surface and volume resistivities
 PTFE/PEEK/PVDF Properties   
PropertiesUnitASTM or UL testPTFEPEEKPVDF
Densitylb/in.³
g/cm³
D7290.078
(2.2)
0.047
(1.31)
0.064
(1.77)
Water Absorption24 hr.(%)D570<0.010.10.03
MECHANICAL
Strength/Weight
Ratio
g/ccTensile
Strength/Density
1800122004000
Tensile StrengthpsiD6383900160007000
Tensile ModulespsiD63880000500000290000
Tensile Elongation
at Break
%D6383002050
Flexural StrengthpsiD790No Break2500097000
Flexural ModuluspsiD79072000630000290000
Hardness
Rockwell,R/M Scale
D785R58R126R80
IZOD Impactft-lb/inD2563.51.63
THERMAL
Coefficient of Linear
Thermal Expansion
10-5in./in./℉D6967.52.66.6
Heat Deflection
Temperature
at 264 psi,(℉/℃)D648132/55320/160230/110
Melting℉/℃D3418635/335644/340332/166
Max.Operating
Temperature
℉/℃-500/260480/249300/150
ThermalBTU-in./ft.2-hr.-℉C1771.71.81.2
Flammability Rating-UL94V-0V-0-
ELECTRICAL
Dielectric Strengthshort time,1/8''
thick,(V-mil)
D1496004801700
Dielectric Constant
at 1MHz
-D1502.13.38.5
Dissipation Factor at
1 MHz
-D150<0.00020.0030.015
Volume Resistivityat 50%RH,(ohm-cm)D257>10^11
10^162*10^14
APPROVALS
Approval-FDAYESYESYES
Approval-RoHSYESYESYES