This two-part, 1:1 mix ratio, medium-viscosity liquid silicone elastomer is specifically designed for optical encapsulation applications. It features a high refractive index (RI), ensuring enhanced light transmission and optical clarity. The material is highly transparent, offering excellent UV and thermal stability, making it ideal for LED encapsulation, optical lenses, and display components. Its precise flowability allows for uniform molding, while its durability and resistance to yellowing ensure long-term optical performance in harsh environments.
Features
- High optical clarity and transparency for excellent light transmission.
- High refractive index (RI) enhances optical performance.
- Two-part, 1:1 mixing ratio ensures simple processing and consistent results.
- Medium viscosity provides good flow control and ease of molding.
- Excellent UV and thermal stability, resistant to yellowing and degradation.
- Reliable protection against environmental stress and mechanical shock.
- Low shrinkage and minimal stress during curing, ensuring precise dimensional stability.
- Good adhesion to various substrates used in optical and electronic applications.
Applications
- Specifically designed for optical encapsulation of LED components, ensuring optimal clarity, protection, and enhanced device performance.
- Ideal for optical molding applications, including lenses, optical covers, and light-guiding elements.
- Suitable for precision encapsulation of sensitive electronic components requiring high transparency and stability.
Technical Index
| Item | Method | Value | |
| Appearance | Eyeballing | A: Transparent | |
| B: Yellowish Liquid | |||
| A/B ratio | — | 1:10 | |
| Viscosity (Pa·s) | A | GB/T 10247-2008 | 6200 |
| B | GB/T 10247-2008 | 7300 | |
| After Mixed | GB/T 10247-2008 | 7200 | |
| Hardness (Shore D) | GB/T 531.1-2008 | 51 | |
| Transmittance 450nm，1mm thick, % | / | 95% | |
| Refractive index | / | 1.54 | |
