CoolTherm® SC-3500 Thermally Conductive Silicone Gap Filler Where to Buy
Product Information
CoolTherm® SC-3500 thermally conductive, low volatile silicone gap filler is a two-component system designed to provide excellent thermal conductivity for electronic applications, while retaining desirable properties associated with silicones.
Shelf Life
Shelf life is nine months for CoolTherm SC-3500 resin and five months for CoolTherm SC-3500 hardener when stored upon receipt at 30°C or lower in original, unopened container. Cartridges should be stored tip down.
CoolTherm SC-3500 gap filler evolves minute quantities of hydrogen gas. Do not repackage or store material in unvented containers. Adequately ventilate work area to prevent the accumulation of gas.
Features and Benefits
Low Stress – exhibits low shrinkage and stress on components as it cures.
Durable – composed of an addition-curing polydimethyl siloxane polymer that will not depolymerize when heated in confined spaces.
Environmentally Resistant – provides excellent thermal shock resistance.
UL Rated – provides excellent flame retardancy; UL 94 V-0 certified.
Uncured Typical Properties*
| Mixed Appearance | Light Pink Paste |
| Mixed Specific Gravity | 3.3 |
| Working Life, min @ 25°C | 60 |
Cured Typical Properties*
| Thermal Conductivity, W/m·K | 3.5 |
| Hardness, Shore OO | 80 |
| Tensile Strength, MPa (psi) | 0.23 (33) |
| Lap Shear Strength, MPa (psi) | 0.14 (20) |
| Elongation at Break, % | 50 |
| Elastic Modulus, MPa | 1.50 |
| Volume Resistivity, ohm-cm @ 25°C | 3.5 x 1013 |
| Dielectric Strength, kV/mm (V/mil) | 6.3 (161) |
| Dielectric Constant, @ 25°C | 7.0 |
| Dissipation Factor, % @ 25°C | <1 |
| Cyclic Siloxane Content, ppm | <100 |
*Data is typical and not to be used for specification purposes.
Cure schedule of 24 hours at 25°C.
Literature
| Download | Type | Name | |
|---|---|---|---|
| Safety Data Sheet | COOLTHERM SC-3500 RESIN | |
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| Safety Data Sheet | COOLTHERM SC-3500 HARDENER | |
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Technical Data Sheet | CoolTherm SC-3500 Thermally Conductive Silicone Gap Filler |
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