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Thermoset SC-320 Thermally Conductive Silicone Encapsulant Where to Buy

Product Information

LORD Thermoset SC-320 thermally conductive silicone encapsulant is a two-component system designed to provide excellent thermal conductivity for electrical/electronic encapsulating 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.

Thermoset SC-320 encapsulant 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. 

Low Viscosity - maintains low viscosity for ease of component encapsulation compared to other highly thermal conductive materials.

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 Liquid
Mixed Specific Gravity 3.1
Gel Time, min @ 121°C 2 - 5
Working Life, min @ 25°C 40
Cure Time 24 hr @ 25°C; or
60 min @ 125°C

Cured Typical Properties*

Volume Resistivity, ohm-cm @ 25°C > 1 x 1014
Thermal Conductivity, W/mk 3.2
Coefficient of Linear Thermal Expansion, ppm/°C 110
Hardness, Shore A 60
Tensile Strength, MPa 2.1
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
Download MSDS (US) Thermoset SC 320 Resin
Download MSDS (US) Thermoset SC 320 Hardener
Download Technical Data Sheet Thermoset SC-320 Thermally Conductive Silionce Encapsulant
Download Selector Guide Electronic Materials for LED Applications
Download Product Catalog Potting & Encapsulation Materials
Download White Paper How Proper Application of Thermally Conductive Materials Will Improve Motor Power Density
Download White Paper Thermally Conductive Potting Compounds Enable Higher Power Density Electronics