BPF-801B PV Backsheet
- BPF-801B is a high-reflective black, double-sided coated PET photovoltaic backsheet that combines a premium all-black appearance with reflective power gain, strong bonding, and excellent weather resistance.
- With a total thickness of 304±5%, tensile strength of MD ≥150 MPa and TD ≥160 MPa, breakdown voltage ≥20 kV, CTI ≥300, partial discharge voltage ≥1500 VDC, and WVTR ≤2.0 g/m²·d, BPF-801B provides reliable insulation, rear-side protection, and long-term weatherability for all-black aesthetic PV modules.
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|
Performance Indicators |
Test Standard | BPF-801B | |
|
Total Thickness |
/ | 304±5%μm | |
|
Structure |
/ | Coating/PET/Coating | |
|
Colour |
/ | Black | |
|
Fluorine Content |
/ | Fluoropolymer Coating | |
|
Tensile Strength |
MD | GB/T 13542.2-2021 | ≥150MPa |
| TD | GB/T 13542.2-2021 | ≥160MPa | |
|
Elongation at Break |
MD | GB/T 13542.2-2021 | ≥120% |
| TD | GB/T 13542.2-2021 | ≥100% | |
|
Heat Shrinkage Rate |
MD | GB/T 13542.2-2021 | ≤1.0% |
| TD | GB/T 13542.2-2021 | ≤1.0% | |
|
Coating Adhesion (grade) |
GB/T 9286-2021 | grade 0 | |
|
Bond Strength With EVA (initial) |
GB/T 2790-1995 | ≥60N/10mm | |
|
High-Reflective Black Reflectance (780-1100nm) |
GB/T 1408.1-2016 | ≥60%/≥90% | |
|
Breakdown Voltage |
GB/T 1408.1-2016 | ≥20kV | |
|
Comparative Tracking Index (CTI) |
IEC 60664-1 | ≥300CTI/V | |
|
Partial Discharge Voltage |
IEC 60664-1 | g/m²·d | |
|
WVTR |
GB/T 26253-2010 | ≤2.0g/m²·d | |
|
Damp Heat Aging Test (85℃×85%RH, 2000h） |
GB/T 2423-2016 | No delamination, no bubbles, Δb≤2 | |
|
Boiling Water Treatment |
Visual Inspection | GB/T 31034-2016 | No delamination, no bubbles, no wrinkling, no peeling, no chalking |
| Coating Adhesion(Grade) | GB/T 9286-2021 | Grade 0 | |
