WSD-1800 Back Coating Resin for Optical Diffusion Film
- WSD-1800 is a solvent-based resin designed for back coating applications on optical diffusion films when used with an isocyanate curing agent.
- It offers excellent compatibility with various PMMA micro powders.
- After crosslinking and curing, the resin forms a smooth, uniform coating with excellent leveling performance and high hardness of over 1H. It also provides good antistatic performance, with surface resistance of approximately 10⁹–10¹¹ Ω.
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| Performance Indicators | Test Standard | WSD-1800 |
| Appearance | HG/T2814-2009 | Slightly yellow liquid |
| Chroma(Pt-Co) | GB/T 605-2006 | ≤40 |
| Solid Content | GB/T2793-1995 | 38%-42% |
| Viscosity (25°C) | GB/T 2794-2013 | 1000-4000mPa·s |
| Solvent: Ethyl acetate | ||
| Process Recommendations | ||
| Processing Performance | Item | Recommendations |
| Test substrate | PET | |
| Drying oven conditions | 120°C × 1-2 min | |
| Curing conditions | Room temperature for 72h-96h | |
| Coating method: Suitable for dry lamination equipment using smooth rollers or gravure rollers. Main resin/curing agent ratio: WSD-1800/N3390 = 100/10.6 |
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