CoolTherm™ SC-6703 Thermally Conductive Silicone Encapsulant Where to Buy
LORD CoolTherm™ SC-6703 thermally conductive silicone encapsulant is a two-component system designed to provide thermal conductivity for encapsulating densely packed power units.
Shelf life of each component is six months from date of manufacture when stored at 25°C in original, unopened container. The material must be periodically rotated within its container to maintain maximum shelf life. Settling will occur if not mixed.
Features and Benefits
Low Stress – exhibits low shrinkage and stress on components as it cures.
Environmentally Resistant – provides excellent thermal shock resistance.
UL Rated – meets requirements of UL 94 V-O standard; provides excellent flame retardancy.
|Mixed Appearance||Light Gray Paste|
|Mixed Viscosity, cps @ 25°C||8000|
|Mixed Specific Gravity||2.0|
|Gel Time, min @ 66°C||12 - 14|
|Working Life, hr @ 25°C||1 - 2|
|Cure Time, hr @ 65°C||4|
Cured Typical Properties*
|Volume Resistivity, ohm-cm @ 25°C||1 x 1014|
|Thermal Conductivity, W/mK||0.8|
|Coefficient of Linear Thermal Expansion, ppm/°C||220|
|Hardness, Shore A||60|
|Tensile Strength, psi||200|
|Elongation at Break, %||80|
|Dielectric Strength, V/mil||500|
|Dielectric Constant, @ 25°C||4.25|
|Dissipation Factor, % @ 25°C||0.02|
*Data is typical and not to be used for specification purposes.
Cure schedule of 1-2 hours at 65°C.