Mothers 6112, Back to Black, Trim Polish Mothers Back to Black is a exterior trim polish designed for use on vinyl, rubber, Plastic, and flat finishes. Perfect for smooth and textured surfaces, bumpers, moldings, louvers, air vents, Window trim and windsheild wiper arms. When used as directed, Back to Black removes Oxidation, ground in dirt, wax residue, and surface film while protecting from deterioration caused by the sun, smog, ozone, water spots, chemicals, and airbourne contaminants. Salesman Note: Mothers Back to Black Trim Polish is not limited to black colored finishes. It can be used on all colors to help remove oxidation and restore an OEM appearance.