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Superior weathering performance: It can resist long-term ultraviolet aging, providing a 25-year service life for protecting backsheets.
Low water vapor transmission rate: Ensures high reliability and protection.
High reflection gain: The inner backsheet reflectivity can reach more than 85%, greatly optimizing the CTM of the modules.
The product is specially designed for crystalline silicon photovoltaic modules.
| Item | Unit | Test method | Technical Parameters |
|---|---|---|---|
| Appearance | / | / | No delamination, blister or crack |
| Thickness | µm | GB/T 13542.2-2009 | ≥300 |
| Adhesion | Class | / | 0 |
| Dimensional stability (150ºC, 30 min) | % | GB/T 13542.2-2009 | ≤1 (MD/TD) |
| Elongation at Break | % | GB/T 13542.2-2009 | ≥80 |
| Tensile strength | MPa | GB/T 13542.2-2009 | ≥110 |
| Adhesive strength with EVA | N/cm | GB/T 2790-1995 | ≥60 |
| Partial discharge voltage | VDC | GB/T 16935.1-2008 | ≥1500 |
| Breakdown voltage | KV | GB/T 1408.1-2006 | ≥18 |
| Water vapor transmission rate | g/(m².d) | GB/T 21529-2008 | ≤2.0 |