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It is used for film-capacitor (and other electrical insulation material.) which features dielectric strength, dielectric constant and volume resistance, low dielectric loss, good mechanical performance and dimension stability. 
Thickness :3-12 UM
Width : 500,620,670 MM
Net weight per roll about : 50KGS/roll
Inner plastic tube core : 3”,6” (76MM ,152MM )
By the way , we also manufacture the BOPET metalized (VM/--Zn /Al ) capacitor film.
Technological data for customer’s reference ,
| Density | g/cm3 | 1.400+/-0.005 | ||
| melting point | ℃ | ≥256 | ||
| Thickness | UM | 3-12 | ||
| Width of roll | MM | 500,620,670 | ||
| Inner plastic tube core | MM | Um2 | Um2 | Um2 | 
| Net weight | kg | 40-110 | ||
| Other size | Can negotiate | |||
| Tensile strength | MD | MPA | ≥200 | Tensile rate 100mm/min@23℃,50%r.h. | 
| TD | MPA | ≥210 | ||
| Elongation at break | MD | % | ≥70 | |
| TD | % | ≥70 | ||
| Resistance modulus | MD | N/mm2 | ≥3500 | |
| TD | ≥3500 | |||
| Thermal shrinkage | MD | % | ≤3 | 30min@150℃ | 
| TD | % | ≤2 | ||
| Wetting tension | mN/m | ≥40 | 23℃ | |
| Surface roughness | um | 0.06-0.15 | @23℃,50%r.h. | |
| BDV X | v/um | ≥3000 | 50Hz or 1kHz @ 23℃ | |
| Relative permittivity | 
 | 3.2+/-0.2 | 23℃ | |
| Volume resistivity | Ω/cm | ≥10 | 1kHz @ 23℃ 200V/um | |
| Dielectric dissipation factor(tan delta) | 
 | ≤0.005 | 200V/um | |
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| Film Uniformity in thickness 
 | 3.0-3.9 | Um2 | 
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| 4.0-5.9 | Um2 | 
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| 6.0-9.9 | Um2 | 
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