Thermally Conductive Sealants & Adhesives
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Thermally conductive adhesives both adhere to and efficiently conduct thermal energy from a heat source. They are often used in electronics, for example, to bond a heat sink to a processor to move the heat from the processor to the heat sink. Thermally conductive silicones are synthetic resins, which can be made from a number of elastomers, and are augmented with metallic or inorganic fillers such as an aluminum oxide or aluminum nitride. Thermally conductive RTV (room temperature vulcanizing) epoxies can be found in one or two parts, as well as with various cure systems.
Common applications for thermal conductive adhesives include heat sink bonding, potting and/or encapsulating sensors, adhering power semiconductors and more. In addition to adhesives, non-hardening gels are also available and are ideal for specialty assembly heat transfers. Thermal conductive silicone works best with a thin layer.
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