Lord Adhesives CoolTherm™ SC-6712/6731 Silicone Resin System

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Lord Adhesives CoolTherm™ SC-6712/6731 Silicone Resin System
Categories:	Polymer; Thermoset; Silicone; Silicone, RTV, Encapsulation Grade
Material Notes:	LORD CoolTherm™ SC-6712/6731 silicone system is a two-component, solvent-free RTV silicone system ideal for potting and encapsulating densely packed components and for producing flexible molds. Features: Low Viscosity – maintains low viscosity for ease of component encapsulation compared to other highly thermally conductive materials. exhibits low shrinkage and stress on components as it cures. room temperature curing formulation is not subject to hardener poisoning. cured system provides excellent electrical and thermal conductivity. can be used on parts and devices that experience operating temperatures from -55°C to +205°C. All information provided by Lord.
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Physical Properties	Original Value	Comments

Specific Gravity	1.18 g/cc @Temperature 25.0 °C
Viscosity	7250 cP @Temperature 25.0 °C

Mechanical Properties	Original Value	Comments
Hardness, Shore A	35	cured
Tensile Strength	340 psi @Temperature 25.0 °C	cured
Elongation at Break	180 %	cured

Electrical Properties	Original Value	Comments
Volume Resistivity	1.00e+14 ohm-cm @Temperature 25.0 °C	cured
Dielectric Constant	3.6 @Temperature 25.0 °C	cured
Dielectric Strength	500 V/mil	cured
Dissipation Factor	0.018 @Temperature 25.0 °C	cured

Thermal Properties	Original Value	Comments
Thermal Conductivity	140 W/m-K	cured
Maximum Service Temperature, Air	200 °C
Minimum Service Temperature, Air	-55.0 °C

Processing Properties	Original Value	Comments
Cure Time	16.0 - 24.0 hour @Temperature 25.0 °C	or 2 to 4 hours at 65
Working Life	60.0 - 180 min @Temperature 25.0 °C	Mixed
Shelf Life	6.00 Month @Temperature 25.0 °C	each component from date of manufacture

Descriptive Properties
Appearance	White Liquid
Mix Ratio	100 to 0.5	by weight, resin to hardener

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