CHT Group QSil 229LV Potting Silicone/Encapsulant, Clear

Description

QSil 229LV potting silicone from CHT Group is a two-part, heat-cured, optically clear encapsulant designed for electronic potting, LED encapsulation, and optical assemblies. With a 1:1 mix ratio and 2,900 cps viscosity, the QSil 229LV potting silicone flows smoothly around fine-pitch components and complex geometries while delivering electrical insulation and mechanical shock protection.

Key Features and Benefits

• Optically clear, non-yellowing platinum catalyst system
• 1:1 mix ratio for hand mix or automatic meter-mix dispense
• Low 2,900 cps viscosity for self-leveling around dense circuitry
• Heat cure develops full mechanical and adhesion properties
• Solvent-free formula with no cure byproducts
• 65 Shore A hardness balances cushion and dimensional stability
• Refractive index of 1.409 matches common LED optics

Common Applications for QSil 229LV Potting Silicone

• LED module encapsulation and lens assemblies
• Optical sensor and camera potting
• Power supply and driver board encapsulation
• Solar concentrator and photovoltaic module sealing
• Medical device potting where clarity is needed
• Display backlighting and indicator panel potting
• Automotive lighting and ADAS sensor housings

Compatible Substrates

• FR-4 and CEM-3 printed circuit boards
• Aluminum, copper, and plated metal housings
• Polycarbonate, PMMA, and most engineering plastics
• Glass and quartz optical windows
• Many ceramics and inorganic substrates

QSil 229LV Potting Silicone Technical Specifications | Attribute | Value |

| -| -|
| Manufacturer | CHT Group (Quantum Silicones) |
| Product | QSil 229LV |
| Chemistry | Two-part platinum-cure silicone |
| Mix Ratio | 1:1 by weight |
| Viscosity | 2,900 cps |
| Hardness | 65 Shore A |
| Refractive Index | 1.409 |
| Specific Gravity | 1.00 |
| Thermal Conductivity | 0.18 W/m-K |
| Gel Time | Greater than 24 hours at room temperature |
| Cure | Heat cure required |
| Color | Clear | ### Packaging and Ordering

QSil 229LV ships in matched A and B containers. Pair with our broader silicones lineup for primers and surface treatments. Datasheets and TDS files are published by CHT Group.

Need Help?

Note: This is a composite product page. For component-level pricing on Part A and Part B, or for cure schedule guidance, call (800) 220-1966 or email [email protected].