B601W EVA Solar Film
- B601W is a high-reflective white EVA encapsulation film designed for rear-side encapsulation between the backsheet and solar cells in monofacial and bifacial PV modules.
- With over 91% reflectance in the 400–700 nm range, it improves visible light utilization and module power output while reducing whitening overflow after lamination.
- Its stable adhesion to glass and backsheets, together with reliable crosslinking performance, makes it suitable for rear-side encapsulation in high-efficiency BC and TOPCon modules.
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| Product Specifications | ||
| Specifications | Normal Specifications | Customized Specifications |
| Thickness | 0.45mm – 0.65mm | 0.2 – 0.8mm |
| Width | 1000 – 1030mm | 300 – 1300mm |
| Length | 350m | 150m/350m/400m |
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Technical Properties |
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| Performance Indicators | Test Standard | B601W | |
| Model / Using Instruction | / | High Reflective | |
| Shrinkage Ratio | MD | GB/T29848 | <3.0% |
| TD | GB/T29848 | <1.5% | |
| Light Transmittance | 280 – 380nm | Betterial | ＜6.0% |
| 380 – 1100nm | GB/T29848 | ＜1.0% | |
| Peel Strength | EVA / Glass | GB/T29848 | ＞60N/cm |
| EVA / Backsheet | GB/T29848 | ＞60N/cm | |
| Crosslink Degree | GB/T29848 | ＞75% | |
| Volume Resistivity | GB/T29848 | >1*10^14 Ω·cm | |
| Reflectivity | 400 – 700nm | Betterial | ＞91% |
| Pre-crosslinking degree | Betterial | ＜40 | |
| Laminating Process | ||||
| Laminated Parameters | Temperature(℃) | Vacuum Time(S) | Lamination Time(S) | |
| Single Chamber Laminator | 142 – 148 | 300 – 360 | 480 – 600 | |
| Double Chamber Laminator | Cavity 1 | 120 – 130 | 300 – 360 | 10 – 20 |
| Cavity 2 | 140 – 155 | 10 – 20 | 480 – 600 | |
