Scholl Concepts S2 BLACK is an extraordinary high-performance cutting compound that has been specifically developed for the detailer. Developed for applications on used and weathered paint surfaces, thanks to its outstanding and extreme cut, as well as its superior high-gloss features, S2 BLACK knocks out even the deepest and most severe paint imperfections in seconds. Cut: Extra Heavy (5/6)  Gloss: Brilliant (5/6) Sanding Paper: P1200-P1500.