WSD-1559 PV Backsheet Coating
- WSD-1559 is the main component of a two-component fluorocarbon coating.
- When used with an isocyanate curing agent, it is suitable for the outer layer of high-performance transparent coated backsheets for solar PV modules.
- After full curing, the coating provides excellent scratch resistance, weather resistance, and damp heat aging resistance.
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| Performance Indicators | Test Standard | WSD-1559 |
| Appearance | HG/T2814-2009 | Slightly hazy liquid |
| Solid Content | GB/T2793-1995 | 50%-54% |
| Viscosity (25°C) | GB/T 2794-2013 | 100-300mPa·s |
| Solvent: Propylene Glycol Methyl Ether Acetate (PMA) and Dibasic Ester (DBE) | ||
| Process Recommendations | ||
| Processing Performance | Item | Recommendations |
| Test Substrate | PET | |
| Pretreatment | Corona treatment | |
| Coating Thickness | Dry film thickness >10 μm | |
| Oven Conditions | ≥170°C × 1 min | |
| Curing Conditions | Can be directly laminated. If no lamination process is applied, cure at 60°C × 2 days. | |
| L | ||
