Why are silicones used in LED & Lighting applications?
Silicones have become widely used by LED design engineers to provide improved light performance, environmental protection and extended product life. CHT has several product groups to choose from including optically clear encapsulants & thermally conductive encapsulants & adhesives.
Applications
- Automotive vehicle lighting
- Signage and displays for sports and advertising
- Back lighting for LCD screens
- Screens and displays in vehicles
- Aviation display lighting & airport lighting
- Stage & theatre lighting
- Rail & road signalling systems
- Architectural & street lighting
- Domestic lighting
- Industrial machine lighting
- Medical
CHT’s range of optical-grade silicones feature heat stability, excellent transparency and aging resistance that maintains stable light transmittance over a longer period of time. Optical-grade silicones perform as protective barrier against moisture and other environmental contaminants when casted over LEDs.
Features
- Thermal properties for efficient heat transfer
- Environmental protection
- High refractive index
- Non-yellowing catalyst systems
- Low viscosity to flow around complex parts
- Self-bonding grades
- Flame retardant, UL listed silicones
Watch Video – CHT’s Optically Clear QSil 212 Dispensed Over an LED Channel
With the latest innovation of SilSo Clear 21002 , CHT has developed a highly transparent liquid silicone rubber (LSR) designed for injection moulding of optical parts suitable for challenging lightguides in vehicle headlamps.
Download the SilSo Clear 21002 flyer.
For more detailed silicone product infomation see our Optically Clear Encapsulants and Thermally ConductIve Silcones Pages
| Product | Description | Features |
|---|---|---|
| ACC15 | Silicone Conformal Coating | UL recognised in file No. E493561 |
| ALPA-GEL M | Silicone Gel | Very low viscosity |
| AS1402 | 1 Part Non-Corrosive Neutral Cure Adhesive Sealant (Electronic Grade) | Fast heat cure |
| AS1420 | 1 Part Non-Corrosive Neutral Cure Adhesive Sealant and Potting Material (Electronic Grade) | Fast heat cure |
| AS1421 | 1 Part Non-Corrosive Neutral Cure Adhesive Sealant and Potting Material (Electronic Grade) | UL94 V0 recognised in file No. E334038 |
| AS1620 | 1 Part Low Corrosive Industrial Sealant | Excellent flow and self levelling properties |
| AS1701 | 1 Part Non-Corrosive Neutral Cure Adhesive Sealant (Electronic Grade) | Non corrosive |
| AS1723 | 1 Part Non-Corrosive Neutral Cure Adhesive Sealant and Potting Material (Electronic Grade) | Self levelling |
| AS1740 | 1 Part Non-Corrosive Neutral Cure Adhesive Sealant, Coating and Potting Material (Electronic Grade) | MIL 46146B physical / chemical requirements |
| AS1740R | 1 Part Non-Corrosive Neutral Cure Adhesive Sealant, Coating and Potting Material (Electronic Grade) | UL recognised in file No. E334038 |
| AS1745T | 1 Part Non-Corrosive Neutral Cure Adhesive Sealant (Electronic Grade) | MIL 46146B physical / chemical requirements |
| AS1802 | 1 Part Non-Corrosive Neutral Cure Adhesive Sealant (Electronic Grade) | Excellent thermal conductivity |
| AS1811 | 1 Part Non-Corrosive Neutral Cure Adhesive Sealant (Electronic Grade) | UL94 V0 recognised in file No. E334038 |
| AS5700 | 1 Part General Purpose Sealant | Non corrosive |
| AS5702 | 1 Part General Purpose Sealant | Non corrosive |
| EGel3000 | Silicone Gel | 1:1 mix ratio |
| EGel3002 | Silicone Gel | High tack and mechanical adhesion to many substrates |
| EGel3003 | Silicone Gel | 1:1 mix ratio |
| QGel 300 | High Strength Silicone Gel | Soft, but has considerably higher strength than general purpose silicone gels |
| QGel 300 Blue | 2 part Silicone Gel | Soft, higher strength than general purpose gels |
| QGel 300Y | High Strength, Yellow Tinted Silicone Gel | Soft, but has considerably higher strength than general purpose silicone gels |
| QGel 301 | Fast Curing, High Strength Silicone Gel | 1:1 mix ratio |
| QGel 302 | Fast Curing, High Strength Silicone Gel | Soft gel |
| QGel 303 | Fast Curing, High Strength Silicone Gel | Soft gel |
| QGel 310 | General Purpose Silicone Gel | 1:1 mix ratio |
| QGel 311 | General Purpose Silicone Gel | 1:1 mix ratio |
| QGel 311UV | Special Purpose Silicone Gel with UV Tracer | 1:1 mix ratio, soft but resilient gel |
| QGel 312 | Custom Silicone Gel | 10:1 mix ratio |
| QGel 313 | Custom Silicone Gel | 20:1 mix ratio |
| QGel 314 | High Tack Silicone Gel | Convenient 10:1 mixing ratio for use in automatic dispensing equipment or hand mixing |
| QGel 317 | General purpose silicone gel | 1:1 mix ratio |
| QGel 319 | Optically clear silicone gel | 10:1 mix ratio |
| QGel 322 | General purpose silicone gel | 1:1 mix ratio |
| QGel 322Y | General purpose silicone gel | 1:1 mix ratio |
| QGel 324 | General purpose silicone gel | 1:1 mix ratio |
| QGel 326 | General purpose silicone gel | Soft, but resilient |
| QGel 327 | General purpose silicone gel | Soft, but resilient |
| QGel 329 | General purpose silicone gel | Soft, but resilient |
| QGel 900 | High Refractive Phenyl Gel | 1:1 mix ratio |
| QGel 910 | High refractive index Phenyl gel | 1:1 mix ratio |
| QGel 920 | High refractive index Phenyl gel | 1:1 mix ratio |
| QSil 206 | Transparent Liquid Silicone Elastomer | Low linear shrinkage |
| QSil 207 | Two-part Transparent Liquid Silicone Elastomer | Low linear shrinkage |
| QSil 209 | Two-part Transparent Liquid Silicone Elastomer | 1:1 mix ratio |
| QSil 211 | Transparent Liquid Silicone Elastomer | Non-yellowing catalyst system |
| QSil 212 | Two-part Transparent Liquid Silicone Elastomer | UL listed in file No. E205830 |
| QSil 213 | Two-part Transparent Liquid Silicone Elastomer | Low linear shrinkage |
| QSil 214 | Two-part Transparent Liquid Silicone Elastomer | Low linear shrinkage |
| QSil 216 | Two-part Transparent Liquid Silicone Elastomer | Convenient 10:1 mixing ratio for use in automated dispensing equipment or hand mixing |
| QSil 217 | Two-part Transparent Liquid Silicone Elastomer | Convenient 1:1 mixing ratio for use in automated dispensing equipment or hand mixing |
| QSil 218 | Two-part Transparent Liquid Silicone Elastomer | Convenient 10:1 mixing ratio for use in automated dispensing equipment or hand mixing |
| QSil 219 | Two-part Transparent Liquid Silicone Elastomer | Low linear shrinkage |
| QSil 220 | Two-part Self-Bonding Transparent Liquid Silicone Elastomer | Low linear shrinkage |
| QSil 222 | Two-part Self-Bonding Transparent Liquid Silicone Elastomer | Low linear shrinkage |
| QSil 223 | Two-part Transparent Liquid Silicone Elastomer | Low linear shrinkage |
| QSil 229 | Two-part Self-Bonding Transparent Liquid Silicone Elastomer | Long (> 3 days) work life |
| QSil 229LV | Two-part Self-Bonding Transparent Liquid Silicone Elastomer | High viscosity B-side for incorporation of phosphors |
| QSil 550 | 2 part encapsulation and potting silicone | Long pot life |
| QSil 553 | 2-Part Encapsulation and Potting Silicone | 100% solids - no solvents |
| QSil 602 | Two-part Transparent Liquid Silicone Elastomer | Low linear shrinkage |
| SilSo Bond 14000 | 1 part non-corrosive neutral cure adhesive sealant | UL listed in file E334038 (UL94V-0) |
| SilSo Clear 21002 | 2 Part Optically Clear Liquid Silicone Rubber | Convenient mixing 1:1 ratio for use in automatic dispensing equipment or hand mixing |
| SilSo Cool 21311 | 2-part thermally conductive encapsulant | Flame retardant |
| TufGel 330 | Two-part, High Strength Silicone Gel | Low modulus minimizes stress on parts and components |
| TufGel 331 | Two-part, High Strength Silicone Gel | Low modulus minimizes stress on parts and components |
| TufGel 332 | Two-part, High Strength Silicone Gel | Low modulus minimizes stress on parts and components |
| TufGel 333 | Two-part, High Strength Silicone Gel | Low modulus minimizes stress on parts and components |
| TufGel 3350 | Two-part, Self-Bonding High Strength Silicone Gel | Low modulus minimizes stress on parts and components |
| TufGel 336 | Two-part, Self-Bonding High Strength Silicone Gel | Low modulus minimizes stress on parts and components |
| TufGel 338 | Two-part, High Strength Silicone Gel | Low modulus minimizes stress on parts and components |
| TufGel 339 | Two-part, High Strength Silicone Gel | Low modulus minimizes stress on parts and components |