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Chemically Resistant adhesives

Lord Adhesives CoolTherm™ SC-322 Thermally Conductive Adhesive
Categories: Polymer; Thermoset; Silicone; Silicone Elastomer, for Thermal Management

Material Notes: LORD CoolTherm™ MT-322 thermally conductive adhesive is a one-component silicone adhesive designed for use in assemblies where thermal dissipation is desired. CoolTherm MT-322 adhesive can be used to bond electronic devices such as memory chips to lids, heat spreaders and heat sinks. The adhesive cures to form a flexible elastomer offering superior high temperature electrical properties.

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. provides excellent adhesion to a wide variety of surfaces including silicon, ceramic, plastic and metal. can be used on parts and devices that experience operating temperatures from -40°C to +200°C.

All information provided by Lord.

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Physical PropertiesMetricEnglishComments
Specific Gravity 2.65 g/cc
@Temperature 25.0 °C
2.65 g/cc
@Temperature 77.0 °F
Viscosity 65000 cP
@Temperature 25.0 °C
65000 cP
@Temperature 77.0 °F
 
Mechanical PropertiesMetricEnglishComments
Hardness, Shore A 6565cured; ASTM D 2240
Shear Strength 2.10 MPa305 psiLap Shear, cured; ASTM D 1002
 
Electrical PropertiesMetricEnglishComments
Volume Resistivity 2.00e+14 ohm-cm
@Temperature 25.0 °C
2.00e+14 ohm-cm
@Temperature 77.0 °F
cured; ASTM D 257
Dielectric Constant 2.9
@Frequency 1e+6 Hz
2.9
@Frequency 1e+6 Hz
cured; ASTM D 150
Dielectric Strength 10.0 kV/mm
@Temperature 25.0 °C
254 kV/in
@Temperature 77.0 °F
cured; ASTM D 149
 
Thermal PropertiesMetricEnglishComments
CTE, linear 160 µm/m-°C88.9 µin/in-°Fcured; ASTM D 864
Thermal Conductivity 1.70 W/m-K11.8 BTU-in/hr-ft²-°Fcured, mathis hot disk
Crystallization Temperature -47.0 °C-52.6 °Fcured
Maximum Service Temperature, Air 200 °C392 °F
Minimum Service Temperature, Air -40.0 °C-40.0 °F
 
Processing PropertiesMetricEnglishComments
Pot Life 1.00 min
@Temperature 25.0 °C
1.00 min
@Temperature 77.0 °F
month, working life
Shelf Life 6.00 Month
@Temperature 5.00 °C
6.00 Month
@Temperature 41.0 °F
from date of manufacture when stored in original, unopened container
 
Descriptive Properties
AppearanceGrey Paste

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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PLORD9238 / 232594

Chemically Resistant adhesives

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