Meguiar s C2100 Mirror Glaze Professional Detailing Clay is amazing for safely removing stubborn or severe bonded surface contaminants from your vehicle. The clay bar is equally effective on paint glass metal and plastic and quickly and easily removes contaminants such as paint overspray industrial fallout fresh water spots road tar bug debris and tree sap mist. Simply lubricate surface with M34 Mirror Glaze Final Inspection (body shop safe) or with D155 Last Touch Spray Detailer diluted 1:1 then gently rub until surface is mirror smooth.