Typical Optically Clear Silicone
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 |