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Formula: FEP
Form: Disk
Material: Fluorinated ethylene propylene (FEP)
CAS Number: 25067-11-2
Commodity: Polymers
Transparency:
Clear/Transparent
The FEP Copolymer Disk is part of Goodfellow's extensive range of polymer disks. With 120 variations, this fluoropolymer product offers a balance of properties like high melt viscosity, chemical inertness and electrical insulation. These disks are used across a range of applications like wire and cable insulation, and chemical-resistant linings. The wide selection of sizes and thicknesses makes FEP Copolymer disks suitable for prototyping, research and small-scale production across industries.
Tolerances
Disk
| Thickness | ±20% |
|---|
Material Properties for Polymers
Chemical Resistance
| Element | Value |
|---|---|
| Acids - concentrated | Good |
| Acids - dilute | Good |
| Alcohols | Good |
| Alkalis | Good |
| Aromatic hydrocarbons | Good |
| Greases and Oils | Good |
| Halogenated Hydrocarbons | Good |
| Halogens | Good |
| Ketones | Good |
Mechanical Properties
| Element | Value |
|---|---|
| Coefficient of friction | 0.27-0.67 |
| Hardness - Rockwell | R25-45, 60 Shore D |
| Poisson's ratio | 0.48 |
| Elongation at break( % ) | 150-300 |
| Tensile modulus( GPa ) | 0.5-0.6 |
| Izod impact strength( J m⁻¹ ) | 999999No Break |
| Tensile strength( MPa ) | 14-30 |
Electrical Properties
| Element | Value |
|---|---|
| Dielectric constant @1MHz | 2.1 |
| Dissipation factor @ 1MHz | 0.0007 |
| Dielectric strength( kV mm⁻¹ ) | 20@3.2mm |
| Surface resistivity( Ohm/sq ) | 10¹⁶ |
| Volume resistivity( Ohmcm ) | 10¹⁸ |
Physical Properties
| Element | Value |
|---|---|
| Flammability | V0 |
| Radiation resistance | Poor |
| Refractive index | 1.344 |
| Resistance to Ultra-violet | Excellent |
| Limiting oxygen index( % ) | 95 |
| Water absorption( % ) | 0.01 |
| Density( gcm⁻³ ) | 2.15 |
Thermal Properties
| Element | Value |
|---|---|
| Heat-deflection temperature - 0.45MPa( C ) | 50 |
| Heat-deflection temperature - 1.8MPa( C ) | 70 |
| Lower working temperature( C ) | -250 |
| Upper working temperature( C ) | 150-200 |
| Specific heat( J K⁻¹ kg⁻¹ ) | 1100 |
| Thermal conductivity( W m⁻¹ K⁻¹ ) | 0.19-0.24@23°C |
| Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) | 83-104 |
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FEP Copolymer Film Formula: FEP
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