Sheet in PI 250x300 mm yellow
PI, that is polyimide, is the most heat resistant plastic we sell. The yellow grade is the driest of the unfilled grades: it takes up about a third as much moisture as the brown one.
Polyimide is amorphous and therefore has no melting point. The yellow grade is dimensionally stable up to 360 degrees and has a tensile strength of 130 MPa. Nor does it burn: it has an oxygen index of 49 percent, far above the 21 of air, and matches fire rating UL 94 V-0.
The weakness is hydrolysis, that is hot water and steam, which PI is sensitive to in the upper temperature range. But dry and hot is where the yellow grade is at its best, in ovens, dryers and electronics that run warm.
The sheet in PI measures 250x300 mm and is supplied in yellow. A practical sheet for you who are going to mill or saw out parts in polyimide.
Do you have a specific application in mind? We will help you pick the right one.
Technical specifications
| Property | Value | Unit | Test standard |
|---|---|---|---|
| Density & Weight | |||
| Density | 1,42 | g/cm³ | ISO 1183 |
| Tensile Properties | |||
| Yield Stress | 130 | MPa | ISO 527-2 |
| Tensile Modulus of Elasticity | 4300 | MPa | ISO 527-2 |
| Tensile Strain at Break | 6,5 | % | ISO 527-2 |
| Flexural Properties | |||
| Flexural Strength | 180 | MPa | ISO 178 |
| Flexural Modulus of Elasticity | 4000 | MPa | ISO 178 |
| Impact Resistance | |||
| Charpy Notched Impact Strength | 9,6 | kJ/m² | ISO 179 |
| Charpy Unnotched Impact Strength | 87 | kJ/m² | ISO 179 |
| Hardness | |||
| Shore D Hardness | 88 | Shore D | Shore D |
| Ball Indentation Hardness | 265 | MPa | ISO 2039-1 |
| Compressive Properties | |||
| Compressive Strength | 185 | MPa | ISO 604 |
| Compressive Modulus | 4123 | MPa | ISO 604 |
| Temperature Limits | |||
| Glass Transition Temperature | 260 | °C | ISO 3146 |
| Thermal Conductivity | |||
| Thermal Conductivity | 0,4 | W/(m·K) | DIN 52612 |
| Thermal Expansion | |||
| Coefficient of Linear Thermal Expansion | 4,6 x 10⁻⁵ | ISO 11359-2 | |
| Insulation Properties | |||
| Dielectric Strength | 18 | kV/mm | IEC 60243-1 |
| Static Dissipation | |||
| Surface Resistivity | 10¹⁶ | IEC 60093 | |
| Flammability Rating | |||
| Flammability Rating (UL 94) | UL 94 V-0, motsvarande | UL 94 | |
| Limiting Oxygen Index (LOI) | 49 | % | ISO 4589-2 |
Värdena ovan är genomsnitt från statistiska tester som görs löpande. De anges som information och är inte bindande, om inte annat uttryckligen avtalats i ordererkännandet. För batchspecifika värden kan PlastShop tillhandahålla ett EN 10204-2.2-certifikat.
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