Super Bright is a acid-based cleaner, formulated for metal wheels. It’s formulated to brighten chrome, clear coated and mag wheels and is safe for plastic wheel covers. It contains strong mineral acids which quickly remove brake dust and road films, while cleaning and brightening without scrubbing. Recommended dilutions are 10:1 up to 25:1. Do not use on PVD, anodized, or uncoated aluminum wheels. Contains HF