Mothers Back-to-Black Trim Care helps to stop and reverse oxidation. As your ride’s exterior ages, rubber, plastic and vinyl of all colors will dry, crack, flake and deteriorate. With Mothers back-to-black trim care, this oxidation process can be reversed. This trim treatment is great for bumpers, moldings, louvers, window trim, vents, seals, skirts, door handles, wiper arms – anything that’s uncoated plastic, rubber or vinyl. The back-to-black to sunburnt plastic, rubber and vinyl can be applied to revive the factory-new sheen, and then re-treat regularly.