LORD- Thermoset SC-320 Silicone Encapsulant

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 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.

• 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.

Mixed Appearance: Light Pink Liquid
Mixed Specific Gravity: 3.1
Gel Time, min @ 121°C: 2 - 5
Working Life, min @ 25°C: 40

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: < 4
Dissipation Factor, % @ 25°C: < 1

Appearance: Pink Liquid
Viscosity, cps @ 25°C: 25,000
Specific Gravity: 3.1

Appearance: White Liquid
Viscosity, cps @ 25°C: 20,000
Specific Gravity: 3.1

*Actual product colours may vary from on-screen and printed representations.
**Data is typical and not to be used for specification purposes. Cure schedule of 60 minutes at 125°C.