General Information
Typical RI 1.41 liquid silicone rubber is a transparent, flexible elastomer widely used for LED encapsulation and optical components.
Features
- High transparency
- Excellent mechanical strength
- Short curing cycle
- Stable viscosity for consistent molding performance
Application
- LED encapsulation
- Eyeglass nose pads
- Cups
- Earphone covers
Technical Index
| Property | Test Method | CAS- 3530A/B | CAS- 3540A/B | CAS- 3550A/B | CAS- 3560A/B |
| Appearance | Visual | Transparent | Transparent | Transparent | Transparent |
| Viscosity (Pa s) | GB/T10247- 2008 | 105 | 105 | 85 | 55 |
| Hardness (Shore A) | GB/T531.1- 2008 | 30 | 40 | 50 | 60 |
| Density (g/cm) | GB/T533- 2008 | 1.01 | 1.01 | 1.01 | 1.01 |
| Tensile Strength (MPa) | GB/T528- 2009 | 4.2 | 4.7 | 6.2 | 7.2 |
| Elongation (%) | GB/T528- 2009 | 155 | 175 | 225 | 155 |
| Tear Strength (kN/m) | GB/T529- 2008 | 12.5 | 14.5 | 20.5 | 18.5 |
| Linear Shrinkage (%) | Internal Test | 2.1 | 2.1 | 2.1 | 2 |
| Light Transmittance (%) | Internal Test | 94 | 94 | 94 | 94 |