POE Solar Film
Our high-performance POE solar films are engineered for high-transmittance, excellent moisture barrier performance, PID resistance, weather resistance, and long-term adhesion retention in advanced PV modules.
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Why Choose Our POE Solar Film?
Excellent Moisture Barrier
- Water Vapor Transmission Rate (WVTR) <5.0 g/m²·day helps enhance the long-term reliability of modules under damp-heat environmental conditions.
High Light Transmittance
- Light transmittance >91%, meeting the requirements of high-efficiency modules for optimal incident light utilization.
Excellent PID Resistance
- Volume resistivity >1×10^15 Ω·cm, suitable for high-system-voltage modules and helping reduce the risk of PID.
No Risk of Acetic Acid Release
- Compared with EVA materials, POE systems do not generate acetic acid by-products, helping reduce the risk of corrosion on metal grid lines, ribbons, and solar cell surfaces.
UV Protection Options
- Our B602MP and B602P POE films feature UV-cut designs, making them suitable for transparent backsheet modules and high-reliability encapsulation applications.
Low-Temperature Encapsulation Options
- Our B606L / B606LW are thermoplastic TPO encapsulation films designed for low-temperature encapsulation applications such as perovskite, thin-film, CIGS, and PC substrate modules.
POE vs EVA Comparison Chart
| Item | EVA Film | POE Film |
| Material Type | Polar copolymer | Non-polar polyolefin |
| Molecular Structure | Contains polar VA (vinyl acetate) groups | Saturated olefin structure |
| Volume Resistivity | Relatively low | Extremely high |
| PID Resistance | Moderate | Excellent |
| Moisture Barrier Property | Moderate | Excellent |
| Damp Heat Resistance | Moderate | Excellent |
| Anti-aging Performance | Good | Superior |
| Yellowing Risk | Possible yellowing over time | Very low yellowing tendency |
| UV Stability | Good | Excellent |
| Light Transmittance | High | High |
| Crosslinking Difficulty | Relatively easy | More difficult |
| Acetic Acid Release | Yes | No |
| Adhesion Performance | Excellent | Slightly weaker |
| Cost | Lower | Higher |
| Market Maturity | Highly mature | Rapidly growing |
| Impact on Module Lifetime | Suitable for ~25-year lifespan | Better for 30+ year lifespan |
Our POE Solar Films
Our POE Solar Films Technical Data Sheet
| Product Model | Material / Structure | Key Features | Optical Performance | Electrical Performance | Adhesion Strength | Typical Applications |
| B602 | Crosslinkable high-transmittance POE encapsulation film | Excellent moisture barrier, weather resistance, PID resistance, strong peel retention | >91% transmittance (380–1100 nm) | Volume resistivity >1×10^15 Ω·cm; ΔYI <3.0 after damp-heat & UV aging | Glass ≥80 N/cm; Backsheet ≥70 N/cm | Dual-glass PV modules, lightweight PV modules |
| B602P | Fast-curing UV-cut POE encapsulation film | Fast lamination, excellent weather resistance, PID resistance, high adhesion | <30% UV transmittance (280–380 nm); >91% transmittance (380–1100 nm) | Volume resistivity >1×10^15 Ω·cm; ΔYI <3.0 after aging | Glass >100 N/cm; Backsheet >70 N/cm | Dual-glass modules, high-reliability PV modules |
| B606L | Thermoplastic TPO encapsulation film (non-crosslinking) | Low lamination temperature, low WVTR, no small-molecule release | ≥75% transmittance (280–380 nm); ≥85% transmittance (380–1100 nm) | Breakdown strength ≥200 KV/mm; WVTR ≤5.0 g/m²·day; volume resistivity >1×10^15 Ω·cm | Glass ≥80 N/cm | Perovskite modules, thin-film PV modules, low-temperature encapsulation |
| B606LW | High-reflective thermoplastic TPO encapsulation film | High reflective gain, low lamination temperature, low WVTR | ≥91% reflectance (400–1100 nm) | Breakdown strength ≥200 KV/mm; WVTR ≤5.0 g/m²·day; volume resistivity >1×10¹⁵ Ω·cm | Glass ≥80 N/cm | CIGS thin-film modules, perovskite modules, PC-based modules |
Applications
Double Glass Module
- Due to the higher requirements for moisture resistance and electrical insulation in double-glass module structures, POE encapsulation film has become one of the mainstream solutions.
- Applicable Products: B602, B602MP, B602P
High-Efficiency N-Type Modules
- Compared with traditional P-type modules, N-type modules (TOPCon, HJT) offer higher efficiency and lower degradation. However, they also require encapsulation materials with superior electrical insulation, PID resistance, and low acid value. Therefore, POE encapsulation film has become a key material.
- Applicable Products: B602, B602MP, B602P
BC Modules
- Due to the more sophisticated structure of BC cells, encapsulation materials are required to provide enhanced UV stability, reflectivity, and long-term reliability. High-performance POE encapsulation solutions are therefore commonly used.
- Applicable Products: B602P, B606LW
Lightweight & Flexible Modules
- Lightweight modules typically use composite front sheets, flexible back sheets, or ultra-thin glass, which place higher demands on the flexibility, adhesion, and lightweight compatibility of encapsulation films.
- Applicable Products: B606L, B606LW
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