Rubber to Metal Bonding in Engine Mounts
Oct 09,2023

The rubber to metal bonding process looks a little different for each part. The rubber in engine mounts aren’t always bonded to the metal part. Sometimes they are manufactured separately and assembled together later. Here’s the basic process for bonding rubber to metal:
1. Pick an elastomer for the application
2. Prepare the metal substrate (blast, degrease)
3. Prime the metal and rubber parts (not always necessary)
4. Apply adhesive to the metal part
5. Mold and bond the parts together
6. Test to ensure bond strength (bond should be the strongest part)
Injection, transfer and compression molding are the most common methods of creating a quality rubber to metal bonded part such as an engine mount. Depending on the complexity and requirement of the part there are a variety of reasons why we chose to use one over the other. The end result is to make sure we are producing a quality part that is purpose built for the application.
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