| Item | Unit | MPET W731C | MPET D322 | MPET W600 | Test Method | |
| Measured Values | ||||||
| Thickness | ㎛ | 23 | Micrometer Method | |||
| Tensile Strengt | MD | kgf/㎟ | 27 | ASTM D 882A | ||
| TD | 25 | |||||
| Ductility | MD | % | 139 | |||
| TD | 144 | |||||
| Modulus of Elasticity | MD | kgf/㎟ | 456 | |||
| TD | 502 | |||||
| Heat Contraction Rate | MD | % | 2.8 | Seoil Method (190℃/20Min.) | ||
| TD | -0.2 | |||||
| Surface Tension (AL Metallized Surface) | dyne/㎝ | ASTM D 2578 | ||||
| Optical Density | Required Value | Seoil Method | ||||
| Average | ||||||
| Upper and Lower Limits | ||||||
| Brilliance (AL Metallized Surface) | 20˚ | % | Seoil Method | |||
| 60˚ | ||||||
| Tape Stripping Strength | Seoil Method | |||||
