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Protecting Electronics with Silicone Paste

Electronic devices are highly susceptible to damage from environmental contaminants, such as extreme temperatures, moisture and vibration. Without any form of protection, the chances of electronic devices performing at optimal levels are slim to none. For this reason, industries rely heavily on high quality silicones.

Silicones have beneficial protective properties that can be applied to thousands of electronic devices in a wide variety of industries. Consisting heavily of siloxane bonds, silicones are structurally different than epoxies and other organic polymers. The siloxane bonds have immense stability as well as a high binding energy, giving silicones their highly sought after characteristics, including high flexibility levels, first-rate electrical properties, high temperature resistance and, of course, environmental contaminant protection.

To achieve the most effective results from silicone, manufacturers of silicones have created silicone thermal gels, which are very easily applied to the various components of an electronic application. The silicone thermal conductive grease and gel are available in formulations consisting of one or two parts. One-part silicone systems require no mixing, and cure at room temperature by simply reacting with the moisture in the air. Two-part silicone systems cure only after adding a curing agent, which causes a polymerization reaction. While the two systems do differ, they both strongly adhere to surfaces, such as glass, metal, plastic, rubber and silicone.

After choosing the appropriate silicone thermal gel system for a specific electronic device, industries then seal, bond, coat and encapsulate the components for high level protection:

  • Seal and Bond. Industries most often use silicone thermal gel to bond substrates when assembling components. Thermally conductive silicone thermal gels have a high temperature resistance that allows them to act as efficient heat sink compounds, bonding heat generating components, such as microprocessors and LED arrays.
  • Coat. During the final stages of production, a thin silicone coat is applied to electronics, which protects the devices from vibration, extreme temperatures, moisture and corrosive agents. Silicone coats can be formulated in various ways to achieve results appropriate to the device. For example, if necessary, a coat can be created to appear optically clear.
  • Encapsulate. Silicone thermal gels encapsulate devices, such as transformers and sensors, and work to transfer heat away from the components. Like coats, they also protect the components from extreme temperatures, moisture and vibration.

Thermal conductive grease and gel offers high protection for electronics when used in each of the above steps.

If you are interested in silicone thermal gels for your operations, Shin-Etsu MicroSi, a leader in the semiconductor manufacturing industry, would be more than happy to help. We have expertise in developing and manufacturing high quality thermal conductive grease and thermal gel that can easily be applied to thousands of electronic devices. To learn more about thermal conductive grease, thermal gel or another product, call Shin-Etsu MicroSi today at (480) 893-8898 or contact us online.