Plain Slitted Polyester Film
It is made of imported alcohol phthalate, which is biaxially stretched. It has the characteristics of high tensile strength, high dielectric strength, high dielectric loss, high loss, high thickness, and large point resistance. It has been widely used in electrical appliances for introduction properties and insulating interlayers. Mainly used in metallized film appliances and arrow-type appliances, such as energy-saving lamps and appliances, and live broadcast packages.
Inside/Outside Core Diameter
| Inside core diameter | Tolerance | Outside core diamete | Tolerance |
| 75mm | +1/-0.5mm | 175mm | ±25mm |
| 75mm | +1/-0.5mm | 220mm | ±20mm |
| 75mm | +1/-0.5mm | 280mm | ±20mm |
Specifications of Metallized Polypropylene Film
| Item | Unit | Typical value | Testing Standard |
| Density | g/cm3 | 1.400±0.005 | GB/T 13542.2-2009/11 |
| Melting Point | ℃ | 256 | GB/T 13542.2-2009/23 |
| Tensile Strength | MD (MPa) | 200 | GB/T 13542.2-2009/11 |
| Tensile Strength | TD（MPa） | 280 | GB/T 13542.2-2009/11 |
| Elongation at Break | TM(%) | 100 | GB/T 13542.2-2009/11 |
| Elongation at Break | TD(%) | 90 | GB/T 13542.2-2009/11 |
| Elastic Modulus | MD (MPa) | 3500 | GB/T 13542.2-2009/11 |
| Elastic Modulus | TD（MPa） | 3500 | GB/T 13542.2-2009/11 |
| Thermal Shrinkage | MD（%） | 2.0 | GB/T 13542.2-2009/23 |
| Thermal Shrinkage | TD（%） | 1.0 | GB/T 13542.2-2009/8 |
| Surface Roughness | μm | 0.085±0.020 | SKC Method |
| Dielectric strength (average) | V/μm | 450 | GB/T 10006-1988 |
| Friction coefficient (static/dynamic) | 0.3-0.5 | GB/T 13542.2-2009/17.1 | |
| Relative Permittivity | 3.2 | GB/T 13542.2-2009/17.1 | |
| Volume Resistivity | Ω.m | >1015 | GB/T 13542.2-2009/16.1 |
| Dielectric Loss Factor | 5.0×103 | GB/T 13542.2-2009/17.1 |