Add it directly to your cleaning solution to give it that extra kick to get through greasy fingerprints. Great on restaurant glass. If you need a higher concentrate just put some in a squirt bottle and apply to your applicator for just that area. Using two applicators helps to keep your water free of SKRUB and helps to make it go so much further. The SKRUB product itself is based on a microcrystaline silica compound. And is very dense. There is no product like this currently on the market for window cleaners. A totally green answer for cutting through greasy prints.
Henry
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