CoolTherm® SC-320 THK Thermally Conductive Silicone Where to Buy
Product Information
LORD CoolTherm® SC-320 THK thermally conductive silicone is a two-component system designed to provide excellent thermal conductivity for electrical/electronic applications, while retaining desirable properties associated with silicones.
Shelf Life
Shelf life of each component is nine months from date of manufacture when stored at 25°C in original, unopened container.
CoolTherm SC-320 THK silicone 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.
Thixotropic Viscosity - maintains low viscosity during dispensing, with minimal flow after dispensing.
Environmentally Resistant - provides excellent thermal shock resistance.
UL Rated - provides excellent flame retardancy; UL 94 V-0 certified.
Typical Properties*
| Mixed Appearance | Light Pink Liquid |
| Mixed Specific Gravity | 3.1 |
| Gel Time, min @ 121°C | 2 - 5 |
| Working Life, min @ 25°C | 40 |
Cured Typical Properties*
| Volume Resistivity, ohm-cm @ 25°C | > 1 x 1014 |
| Thermal Conductivity, W/mk | 3.0 |
| Coefficient of Linear Thermal Expansion, ppm/°C | 110 |
| Hardness, Shore A | 60 |
| Tensile Strength, psi | 290 |
| Elongation at Break, % | 50 |
| Moisture Absorption, % | < 0.1 |
| Dielectric Constant, @ 25°C | 6 |
| Dissipation Factor, % @ 25°C | < 1 |
| Extractable Ionic Contaminants |
Chloride = <10 Sodium = <10 Potassium = <10 Ammonium = <10 Bromide = <10 Sulfate = <10 |
*Data is typical and not to be used for specification purposes.
Cure schedule of 60 minutes at 125°C.
Literature
| Download | Type | Name | |
|---|---|---|---|
| Safety Data Sheet | CoolTherm SC-320 THK Resin | |
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| Safety Data Sheet | CoolTherm SC-320 THK Hardener | |
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Technical Data Sheet | CoolTherm SC-320 THK Thermally Conductive Silicone | |
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Filled Addition-Curing Silicone Encapsulant Handling/Application Notes |