Metal polishing compound is a kind of special soap bar with white color used for polishing, buffing and smoothing surfaces of steel and stainless steel. White polishing compound are differ from green polishing compound. white soap removes swirl marks and imperfections to leave a silky smooth, mirror-like finish on hard metals like steel, stainless steel and iron, so its ideal for stropping knives and razors to achieve an ultra-sharp finish. Formula are available in PDF format file, that described in technical English language.