One of the most common repairs we do in our shop is chemically cleaning brass instruments. I am constantly asked about chem cleans, so I thought I would use this opportunity to answer some of the most common questions. What is a chem clean?
Chem cleaning is a process by which a heavy degreaser, a mild acidic cleaner and detergent are used together to remove build-up from the interior walls of brass instruments. Some shops additionally use ultrasonic cleaning with chemical so