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Nanjing SiSiB Silicones Co., Ltd.
Nanjing SiSiB Silicones Co., Ltd.
SINOSIL-9121
SINOSIL-9121

SINOSIL™-9121 is a platinum-cured, two-part liquid silicone rubber with high thermal conductivity (up to 4.0 W/m·K). It cures at room or elevated temperatures and is ideal for potting heat-generating electronics, offering excellent dielectric properties, elasticity, and effective thermal dissipation.

SINOSIL-9121

Benefits


  • 1:1 mix ratio by weight


  • High thermal conductivity: up to 4.0 W/m·K


  • Excellent dielectric strength and volume resistivity


  • Fast curing at elevated temperature


  • Room temperature curable option


  • Pink color for visual quality control


  • RoHS and halogen-free compliant


Physical Properties


Color and Appearance

White/Pink liquid

Mixing Ratio (A/B)

1:1

Pot life (25°C, min)

45

Curing time (165°C, min)

20

Curing time (hrs)

24

Viscosity (A/B, mPa·s)

14,000/11,000



Properties Cured


Appearance

Pink

Hardness (Shore A)

60

Dielectric Constant

10.0

Dielectric Strength

10-12 kV/mm

Volume Resistivity

1×10¹⁵ Ω·cm

Thermal Conductivity

4.0 W/m·K

These values are typical and are not intended for use as specifications.

Application


  • High-power electronics potting and thermal insulation


  • EV battery modules and control units


  • LED drivers, inverters, power supplies


  • Heat-generating components requiring both insulation and thermal interface

Packing and Storage


SINOSIL™ 9121 is supplied in 1kg kits, 20kg pails, or 200kg drums.


In the unopened original container, it has a shelf life of one year in a dry and cool place.

Documents

DownloadSINOSIL-9121 Safety Data Sheet
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SINOSIL-9121