Lord Adhesives CoolTherm™ SC-420 Thermally Conductive Silicone Encapsulant System

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Lord Adhesives CoolTherm™ SC-420 Thermally Conductive Silicone Encapsulant System
Categories:	Polymer; Thermoset; Silicone; Silicone Elastomer, for Thermal Management
Material Notes:	LORD CoolTherm™ SC-420 thermally conductive silicone encapsulant is a two-component system designed to provide excellent thermal conductivity and flexibility for electrical/electronic encapsulating applications, while retaining desirable properties associated with silicones. CoolTherm SC-420 hardener 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: exhibits low shrinkage and stress on components as it cures. composed of an addition-curing polydimethyl siloxane polymer that will not depolymerize when heated in confined spaces. maintains low viscosity for ease of component encapsulation compared to other highly thermally conductive materials. provides excellent thermal shock resistance. All information provided by Lord.
Vendors:

Available Properties

Specific Gravity, SC-420 Resin
Specific Gravity, SC-420 Hardener
Specific Gravity, Mixed
Water Absorption, ASTM D 570-81, cured
Viscosity, SC-420 Hardener
Viscosity, Mixed
Viscosity, SC-420 Resin
Hardness, Shore A, ASTM D 2240, cured
Tensile Strength, ASTM D412, cured
Elongation at Break, ASTM D 412, cured
Volume Resistivity, ASTM D 257, cured
CTE, linear, ASTM C 864, cured
Thermal Conductivity, cured, hot disc transient method
Pot Life, mixed
Gel Time, mixed
Shelf Life, each component, from date of manufacture when stored in original, unopened container

Property Data

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Manufacturer Notes:
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Category Notes
Plastic

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