CoolTherm® SC-320 Thermally Conductive Silicone Encapsulant | Product Series

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CoolTherm® SC-320 Thermally Conductive Silicone Encapsulant

CoolTherm® SC-320 Thermally Conductive Silicone Encapsulant

CoolTherm® SC-320 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.

Technical Specifications

  • Color: Pink Liquid (resin), White Liquid (hardener), Light Pink Liquid (mixed)
  • Dynamic Viscosity: 25000 cP @ 25°C (resin), 20000 cP @ 25°C (hardener), 22000 cP @ 25°C (mixed)
  • Number of Components: Two-Component (2K)
  • Hardness: 54 Shore A
  • Cure Time: 24 Hours @ 25°C, 60 min @ 125°C
  • Working Time: 40 min @ 25°C
  • Thermal Conductivity: 3 W/m-K
  • Dielectric Strength: 7.9 kV/mm, 200 V/mil
Safety Warning

Full Product Description

CoolTherm® 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.


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 thermally conductive materials.

• Environmentally Resistant – provides excellent thermal shock resistance.

• UL Rated – provides excellent flame retardancy; UL 94 V-0 certified; approved for use in PDG-H2, Table V insulation constructions (Class H – 180°C).


Shelf Life/Storage:

Shelf life of each component is nine months when stored at 25°C in original, unopened container.

CoolTherm 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.

Related Documents

Literature and Reference Materials
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Datasheet - CoolTherm SC-320 Thermally Conductive Silicone Encapsulant (English US)
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Product Brochure - CoolTherm Materials Battery Pack Applications (English A4)
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Product Catalog - Potting & Encapsulation Materials Catalog (Chinese) - China only
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Products Trade Name
CoolTherm SC-320 CoolTherm SC-320 Thermally Conductive Silicone Encapsulant

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