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Kapton® PST polyimide film is a tough, crystalline film developed for the pressure sensitive tape industry. It provides a balanced combination of physical, chemical, and electrical properties over a wide range of temperatures and is engineered to support efficient coating and converting operations for advanced tape constructions.
| Property Group | Property Name | Value | Test Method |
|---|---|---|---|
| Appearance | Color | Amber | |
| Classification | Functional Film Type | Pressure-sensitve adhesive film | |
| Electrical | UL Electrical RTI (°C) | 240 | UL 746B |
| Mechanical | UL Mechanical Strength RTI (°C) | 200 | UL 746B |
| Regulatory | UL Flammability Rating | V-0 | UL-94 |
| Property Name | Thickness (μm) | Elongation % to Break @23°C | Dielectric Strength (kV/mm) | Dielectric Constant @ 1 kHz | Tensile Strength @23°C (MPa) | Tensile Modulus @23°C (GPa) |
|---|---|---|---|---|---|---|
| Test Method | ASTM D5470 | ASTM D882 | ASTM D149 | ASTM D149 | ASTM D882 | ASTM D882 |
| Kapton® 50PST | 12.7 | 236 | 4.00 | 138.0 | ||
| Kapton® 100PST | 25.4 | 72 | 264 | 3.90 | 252.0 | 2.50 |
| Kapton® 200PST | 50.8 | 209 | 3.90 | 165.0 | ||
| Kapton® 300PST | 76.2 | 189 | 3.90 | 165.0 | ||
| Kapton® 500PST | 127.0 | 138 | 3.90 | 165.0 |