Heat Conductive Sealants

Thermal Management in Electrical and Electronics

The trend towards miniaturization of systems and increased circuit density sees electronics devices, modules and systems generating increasingly larger amounts of heat.

Dissipation of the excess heat is critical to the operational lifetime and reliability of the electronics.

Thermally conductive silicones function not only as heat transfer media but also as durable dielectric insulators, barriers against environmental contaminants, and as stress-relieving shock and vibration absorbers over a wide temperature and humidity range.

Why do silicones excel in thermal management applications?

Silicones possess inherent physical properties that make them an excellent choice for thermal management; silicones:

• are thermally conductive
• have a low surface tension that enables them to wet most surfaces and achieve intimate surface contact resulting in low interfacial resistance
• are electrically insulating
• are resistant to moisture and vibration and have good chemical stability
• are non-corrosive
• sustain physical and electrical properties over a wide range of operating temperatures
• can be applied with simple dispensing processes
• allow for rework