Description
CHT QSil 222 Transparent Liquid Silicone Rubber is a two-part silicone for transparent potting and encapsulation where flow, adhesion development, and electrical properties matter. The clear liquid system mixes at 10:1 by weight and requires heated cure for full physical properties.
QSil 222 Benefits
- Transparent and colorless cured appearance supports electronic and optical assemblies.
- Low mixed viscosity helps the material flow around complex parts.
- Self-bonding chemistry can build adhesion without primer when the cure schedule is met.
- Non-yellowing catalyst system helps preserve a clear appearance.
- Hand mixing or machine dispensing can be used when ratio control is maintained.
This material fits potting jobs where operators need a clear silicone elastomer that reaches tight spaces and protects assemblies without hiding the components below. The low viscosity makes it useful for small housings, detailed cavities, and parts with narrow pathways. Because full adhesion and physical properties depend on heated cure, confirm oven capacity, part temperature limits, and fixture design before moving from sample work to production.
Common Applications for QSil 222
- Transparent electronic encapsulation
- Optical potting where clear material is required
- Assemblies with complex shapes or narrow flow paths
- Shock-resistant silicone protection around sensitive components
- 10:1 potting processes using hand mixing or meter-mix equipment
Compatible Materials
- Electronic assemblies and modules
- Optical parts where a transparent silicone is needed
- Plastic and metal housings confirmed through trial builds
- Dispensing systems capable of accurate 10:1 mixing
QSil 222 Technical Specifications
| Property | Value |
|---|---|
| Color | Transparent and colorless |
| Cure Type | Addition cure |
| Mix Ratio by Weight | 10:1 |
| Cure Profile | 30 min at 150 C or 120 min at 100 C |
| Pot Life at 23 C | >24 hr |
| Hardness | 40 Shore A |
| Viscosity Mixed | 1,800 cP |
| Dielectric Strength | 500 V/mil |
| Working Temperature Range | -55 C to 204 C |
Packaging and Ordering
For related transparent and electronics-grade options, browse encapsulants and potting compounds. Manufacturer information is available from CHT Group.
Need Help?
If you need help checking cure schedule, optical clarity, or dispensing ratio for a silicone potting job, call (800) 220-1966 or email [email protected].
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