WSD-1553BK PV Backsheet Coating
- WSD-1553BK is the main component of a two-component black fluorocarbon coating. When used with an isocyanate curing agent, it is suitable for high-performance coated backsheets for solar PV modules.
- It delivers excellent overall performance, strong hiding power, and outstanding damp heat aging resistance, making it ideal for residential and distributed black PV modules.
- The product uses high-resistivity carbon black to effectively help prevent PID issues commonly associated with conventional carbon black.
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| Performance Indicators | Test Standard | WSD-1553BK |
| Appearance | HG/T2814-2009 | White viscous paste |
| Solid Content | GB/T2793-1995 | 56%-60% |
| Viscosity (25°C) | GB/T 2794-2013 | 50-150mPa·s |
| Solvent: Butyl Acetate | ||
| Process Recommendations | ||
| Processing Performance | Item | Recommendations |
| Test Substrate | PET | |
| Pretreatment | Corona treatment | |
| Coating Thickness | 8-12 μm | |
| Oven Conditions | ≥150°C × 1 min | |
| Curing Conditions | Room temperature for 24 h + 50°C × 48 h | |
| Coating Method: Suitable for dry lamination equipment with gravure rollers. Curing Agent: Aliphatic curing agent. Main Resin/Curing Agent Ratio: WSD-1553BK/Curing Agent（90% solid content）= 19/1. |
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