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PEI Disk
Available Configurations
Properties common to all products in this list
Starting at
$199.00
each
No Minimum order
Free technical support
*Free delivery worldwide
Material Properties
Chemical Resistance
| Element | Value |
|---|---|
| Acids - concentrated | Good(-Fair?) |
| Acids - dilute | Good |
| Alcohols | Good |
| Alkalis | Good-Poor |
| Aromatic hydrocarbons | Poor |
| Greases and Oils | Good |
| Halogenated Hydrocarbons | Good-Poor |
| Ketones | Poor |
Electrical Properties
| Element | Value |
|---|---|
| Dielectric constant @1kHz | 3.1 |
| Dissipation factor @ 1MHz | 0.0013@1 |
| Dielectric strength( kV mm⁻¹ ) | 30@1.6mm |
| Surface resistivity( Ohm/sq ) | 4.10¹³ |
| Volume resistivity( Ohmcm ) | 7.10¹⁵ |
Physical Properties
| Element | Value |
|---|---|
| Flammability | V-0 @ 0.4mm |
| Radiation resistance | Good |
| Resistance to Ultra-violet | Good/Fair |
| Limiting oxygen index( % ) | 47 |
| Water absorption - equilibrium( % ) | 1.3 |
| Water absorption - over 24 hours( % ) | 0.25 |
| Density( gcm⁻³ ) | 1.27 |
Mechanical Properties
| Element | Value |
|---|---|
| Hardness - Rockwell | R125 |
| Poisson's ratio | 0.44 |
| Elongation at break( % ) | 60 |
| Compressive modulus( GPa ) | 2.9 |
| Tensile modulus( GPa ) | 2.9 |
| Izod impact strength( J m⁻¹ ) | 50 |
| Abrasive resistance - ASTM D1044( mg/1000 cycles ) | 10 |
| Tensile strength( MPa ) | 85 |
Thermal Properties
| Element | Value |
|---|---|
| Heat-deflection temperature - 0.45MPa( C ) | 200 |
| Heat-deflection temperature - 1.8MPa( C ) | 190 |
| Upper working temperature( C ) | 170-200 |
| Specific heat( J K⁻¹ kg⁻¹ ) | 2000 |
| Thermal conductivity( W m⁻¹ K⁻¹ ) | 0.22@23°C |
| Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) | 56 |
Pultrusions
| Element | Value |
|---|---|
| Compressive strength( MPa ) | 140 |
Tolerances
Disc
| Thickness | ±20% |
|---|