Forever Black Bumper & Trim 6 Oz. (NEW Improved Formula & Larger Size) NEW Improved Formula - 6 oz. of Forever Black Bumper & Trim Dye Applicator Brush included Bumper & Trim Reconditioner will only adhere to porous plastic, rubber, and vinyl. It permanently dyes all textured black plastic, rubber and vinyl with the same polymers that the manufacturers use. Do not allow to dry on paint. Keep damp rag available to remove excess.