QSil 553 is a two-component, gray, thermally conductive silicone elastomer for electronic potting and encapsulation.
Features:
- 100% solids, no solvents
- Long pot life
- Low modulus and good elongation
- Protects against chemicals, environmental contamination, mechanical shock, vibration and impact
Applications:
- Electronic potting and encapsulation
- Electrical insulation in automotive applications, e.g. ABS control unit encapsulation
Specifications / Approvals:
- UL 94 V-0 listed, UL file No. E205830
Typical Properties:
- Mix ratio: 1:1 by weight
- Mixed viscosity: 6000 cP
- Pot life: 100 minutes at 23°C (73°F)
- Cure: 15 minutes at 150°C
- Hardness: 45 Shore A
- Tensile strength: 1.72 N/mm² (249 psi); elongation at break: 240%
- Thermal conductivity: approx. 0.68 W/m·K
- Dielectric strength: 500 V/mil
- Specific gravity: 1.63
- Temperature range: -55°C to +240°C (-67°F to +464°F)
| Packing | 2*1 KG Kit or 2*20KG |