Synthetic tumbling media is designed for long wear when you are using it to deburr metals like aluminum and brass. Compared to other tumbling media, it is lighter weight and ideal for soft metals and smooth finishes. Synthetic tumbling media has 20-45 percent lower bulk density than polyester and ceramic media, providing greater volume per pound and yielding lower working costs. Using synthetic media leads to fine finishes, which is ideal for aerospace, medical, and dental industries. But how is synthetic tumbling made?