CoolTherm® MT-322 Thermally Conductive Adhesive Where to Buy
Product Information
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.
Shelf Life
Shelf life is six months from date of manufacture when stored at 5°C in original, unopened container. Syringe must be maintained at 5°C in a vertical (upright) position with the dispense tip facing down. Do not store syringe on its side (horizontally).
CoolTherm MT-322 adhesive 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.
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.
Excellent Adhesion – provides excellent adhesion to a wide variety of surfaces including silicon, ceramic, plastic and metal.
Broad Temperature Range – can be used on parts and devices that experience operating temperatures from -40°C to +200°C.
Uncured Typical Properties*
| Appearance | Gray Paste |
| Viscosity, cps @ 25°C | 65,000 |
| Specific Gravity | 2.80 |
| Working Life, month @ 25°C | 1 |
| Cure Time |
60 min @ 120°C; or 30 min @ 150°C |
Cured Typical Properties*
| Volume Resistivity, ohm-cm @ 25°C | 2 x 1015 |
| Thermal Conductivity, W/mK | 1.7 |
| Coefficient of Linear Thermal Expansion, ppm/°C | 160 |
| Hardness, Shore D | 65 |
| Lap Shear Strength, psi | 305 |
| Dielectric Constant | 2.9 |
*Data is typical and not to be used for specification purposes.
Literature
| Download | Type | Name | |
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Safety Data Sheet | COOLTHERM MT-322 | |
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Product Catalog | Microelectronic Materials Catalog | |
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Technical Data Sheet | CoolTherm MT-322 Thermally Conductive Adhesive | |
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User Instructions | Electronic Materials Handling Instructions (5°C Storage Temperature) |