SC Johnson Professional Kresto Classic Industrial Super Heavy Duty Hand Cleaner with grit is a special hand cleaner with a mild solvent and a scrubbing agent that does not damage the skin for super-heavy duty skin cleaning Ideal for the toughest industrial dirt, this mechanics hand cleaner and degreaser contains solvents to lift difficult-to-remove oil-based contaminants without harming the skin This industrial hand cleaner contains Astopon, a scrubbing agent produced from walnut shell powder that is easily rinsed away, helping to prevent blocked drains and pipes Kresto Classic hand scrub uses ingredients in a thickened matrix, enabling only a small amount of product required for effective cleaning; ideal small business supplies Kresto Classic hand cleaner is silicone-free, and it has been independently tested at the German Institute of Rubber Technology (DIK) and proven to have no negative effect on the vulcanization process