Signature Series is a strong citrus-based wheel cleaner that is tough on brake dust and filth, but gentle and safe for all wheel finishes and materials. Brake dust contains corrosive iron and carbon deposits that can destroy wheels. Signature Series helps remove this contamination before it causes permanent corrosion and damage. Adding Signature Series to normal wheel cleanings reduces buildup and corrosion and protects a pristine showroom shine. Spray the cleaner directly onto alloy wheels, plastic wheel covers, brake parts, suspension parts, plastic fender liners, or undercarriage parts to break down caustic grime and filth. Clean rubber tire sidewalls to ensure tire shine dressings last longer and look better.