STEK Formula 08 Tar & Adhesive | Tar and Adhesive CleanerSTEK Formula Tar & Adhesive breaks down stubborn tar residue and heavy grime, protecting your paintwork from permanent damage. This formula is safe to use on paint, glass, and PPF, and does a fantastic job of easily removing old residue or glues from old stickers or decals. Thanks to this solutions fast acting properties, you can gently wipe away contaminants or adhesives without any harsh scrubbing, thus reducing the risk of leaving behind scratches