Item Name: SYLGARD™ 170 Fast Cure Silicone Elastomer
Manufacturer: The Dow Chemical Company
Technologies: Polydimethylsiloxane elastomer, two-part 1:1 mix ratio
Color: Black
Cure Type: Rapid room temperature or heat accelerated cure
Package Size: Contact to Techniq VN for details
Shelf Life: Contact to Techniq VN for details
SYLGARD™ 170 Fast Cure is a two-part, black silicone elastomer with a 1:1 mix ratio, designed for faster curing at room temperature. It offers low viscosity, good flowability for filling narrow or complex geometries, and moderate thermal conductivity. The elastomer provides flame resistance, UL 94 V-0 rating, and versatile cure processing controlled by temperature. It cures without exotherm, requires no post-cure, and enables rapid cycle times, making it ideal for general-purpose electrical and electronic encapsulation.
General potting material for electrical/electronic assemblies
Power supplies and transformers
Connectors and sensors
Industrial controls and relays
Amplifiers
High voltage resistor packs
| Property | Unit | Result |
|---|---|---|
| One or Two Part | – | Two |
| Color | – | Black |
| Viscosity (Part A) | cP / Pa·s | 3436 / 3.4 |
| Viscosity (Part B) | cP / Pa·s | 1287 / 1.2 |
| Specific Gravity (Part A) | – | 1.38 |
| Specific Gravity (Part B) | – | 1.38 |
| Property | Unit | Result |
|---|---|---|
| Viscosity (Mixed) | cP / Pa·s | 2361 / 2.3 |
| Thermal Conductivity | BTU/hr·ft·°F / W/m·K | 0.23 / 0.4 |
| Working Time at 25°C | minutes | 3.9 |
| Cure Time at 25°C | hours | 0.2 |
| Durometer Shore A | – | 41.45 |
| Dielectric Strength | volts/mil / kV/mm | 350 / 14 |
| Volume Resistivity | ohm·cm | 2.42×10¹⁵ |
| Dielectric Constant at 100 Hz | – | 3.53 |
| Dielectric Constant at 100 kHz | – | 3.45 |
| Dissipation Factor at 100 Hz | – | 0.0038 |
| Dissipation Factor at 100 kHz | – | 0.0008 |
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