Gamma-Butyrolactone (GBL) is a chemical compound that is commonly used as an industrial solvent, particularly in the production of cleaning products. GBL is a colorless and odorless liquid that can be used as a wheel cleaner. Wheel cleaners that contain GBL are effective in removing brake dust, dirt, and grime from wheels, leaving them spotless and shiny. However, GBL is a highly corrosive substance that can cause skin irritation, respiratory problems, and other health issues if not handled properly. As with any chemical, it is important to follow all safety guidelines and protocols when using GBL as a wheel cleaner