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Effectiveness of a Thermal Protective Coating for Automotive Components

( 05/04/2012 )

By: Russell L. Warley, Penn State Erie, The Behrend College School of Engineering, and Tejbans S. Kohli, Lord

In a modern automobile with an internal combustion engine, there are several high temperature components or systems, especially in locations under the hood and under the body near the exhaust. A common problem (ref. 1) is that of designing thermally sensitive components that are in proximity to high temperature components. An engine mount is generally constructed by bonding an elastomer to metallic attachment structures and is typically rated to withstand temperatures up to approximately 100°C. An exhaust mount is frequently an all-elastomer part, commonly made from natural rubber or EPDM rubber, and is rated to withstand temperatures up to approximately 150°C. It is not unusual for both of these components to be located in close proximity to high temperature heat sources, such as exhaust manifolds, catalytic converters and exhaust pipes where the temperatures may reach 750°C.  Read More

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