CoolTherm® SC-324 Thermally Conductive Silicone Encapsulant | Product Series

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CoolTherm® SC-324 Thermally Conductive Silicone Encapsulant

CoolTherm® SC-324 Thermally Conductive Silicone Encapsulant

CoolTherm® SC-324 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: 37000 cP @ 25°C (resin), 43000 cP @ 25°C (hardener), 30000 cP @ 25°C (mixed)
  • Number of Components: Two-Component (2K)
  • Hardness: 50 Shore A
  • Cure Time: 24 Hours @ 25°C, 60 min @ 125°C
  • Working Time: 30 min @ 25°C
  • Thermal Conductivity: 4 W/m-K
  • Dielectric Strength: 7.4 kV/mm, 188 V/mil
Safety Warning

Full Product Description

CoolTherm® SC-324 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 and flame retardancy.

• UL Rated – provides excellent flame retardancy; UL 94 V-0 certified.


Shelf Life/Storage:

Shelf life of each component is six months when stored at 5-30°C in original, unopened container.

CoolTherm SC-324 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-324 Thermally Conductive Silicone Encapsulant (English US)
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Product Brochure - CoolTherm Materials Battery Packs Application Sell Sheet (English A4) - India only
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Product Brochure - CoolTherm Materials for e-Scooters Sell Sheet (English US) - US only
Product Brochure - Solutions for Electric Vehicle Charging Systems Sell Sheet
Tech Tip - CoolTherm SC-324 Silicone Encapsulant Handling/Application Notes (English A4)
Tech Tip - CoolTherm SC-324 Silicone Encapsulant Handling/Application Notes (English US)
White Paper - How Proper Application of Thermally Conductive Materials Will Improve Motor Power Density
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Products Trade Name
CoolTherm SC-324 CoolTherm SC-324 Thermally Conductive Silicone Encapsulant

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