Teflon FEP 140 DuPont Fluoro Perfluoroethylene Propylene Copolymer

Product Description

Teflon® FEP 140 fluoropolymer resin is a meltprocessible fluoropolymer resin suitable for extrusion as a primary coating for heavy wire gauges (AWG #11 and larger) and for limited jacketing applications.

This resin provides the electrical and mechanical properties needed for low-voltage applications. Teflon® FEP 140 has a lower flow rate than either Teflon® 3100 or Teflon® FEP 100. This low melt flow corresponds to a high molecular weight that provides significant stress crack resistance for thick-walled constructions. The low melt flow, however, significantly reduces the rate at which Teflon® FEP 140 can be extruded.

Like all Teflon® fluoropolymer resins, Teflon® FEP 140 offers an excellent combination of properties: chemical inertness, exceptional dielectric properties, heat resistance, toughness, flexibility, low coefficient of friction, nonstick characteristics, negligible moisture absorption, low flammability, performance at temperature extremes, and weather resistance.

General

Material Status

Commercial: Active

Availability

Europe

North America

Features

Flame Retardant

Good Chemical Resistance

Good Weather Resistance

High ESCR (Stress Crack Resist.)

High Molecular Weight

Low Flow

Low Friction

Low Moisture Absorption

Uses

Cable Jacketing

Communication Wire Jacketing

Wire & Cable Applications

Forms

Pellets

Processing Method

Extrusion

Physical	Nominal Value	Unit	Test Method
Specific Gravity			ASTM D792
Melt Mass-Flow Rate (MFR) (372°C/5.0 kg)		g/10 min	ASTM D1238
Mechanical	Nominal Value	Unit	Test Method
Tensile Strength (Yield)		psi	ASTM D638
Tensile Elongation (Break)		%	ASTM D638
Thermal	Nominal Value	Unit	Test Method
Melting Temperature		°F
Electrical	Nominal Value	Unit	Test Method
Dielectric Strength			ASTM D149
0.0100 in		V/mil
0.125 in		V/mil
Dielectric Constant			ASTM D150
100 kHz
1 MHz
Dissipation Factor			ASTM D150
100 kHz
1 MHz
Related Terminology
Product names can be difficult to match. You may have searched any one of these terms to find this product: Teflon® FEP 140, Teflon FEP 140, Teflon® FEP , Teflon FEP, TeflonFEP140, TeflonFEP, FEP 140, FEP140, FEP, 140, Perfluoroethylene Propylene Copolymer, Fluoropolymer, DuPont Fluoro, PerfluoroethylenePropyleneCopolymer, 140FEP
Features
Features may also be described by the following terms: Good Chemical Resistance, Chemical Resistant, Good Weather Resistance, Weather Resistant, High Environmental Stress Cracking Resistance, High ESCR, Stress Cracking Resistant, High Molecular Weight, High MW, Low Flow, Low Melt, Low MFI, Low Friction, Low Moisture Absorption, Low Water Absorption, Water Resistant, Moisture Resistant.
Uses
Uses may also be described by the following terms: Wire and Cable Applications, Wire & Cable Applications, Communication Wire Jacketing.

Extrusion	Nominal Value	Unit
Cylinder Zone 1 Temp.		°F
Cylinder Zone 2 Temp.		°F
Cylinder Zone 3 Temp.		°F
Cylinder Zone 4 Temp.		°F
Cylinder Zone 5 Temp.		°F
Adapter Temperature		°F
Melt Temperature		°F
Die Temperature		°F
Extrusion Notes
Processing conditions for extruding Teflon® FEP 140 on AWG #14 Solid Copper Wire 60 mm Extruder with 30:1 L/D Clamp Temperature: 750°F Crosshead Temperature: 760°F

Notes

¹Typical properties: these are not to be construed as specifications.

Teflon® FEP 140

Perfluoroethylene Propylene Copolymer

Supplied by DuPont Fluoropolymers