For all acid-sensitive natural and artificial stones: Marble, granite, slate, clinker, law marble, sandstone, quartzite, tiles, ceramics, porcelain stoneware and concrete stone, for the Inner and outdoor area The surface first Remove coarse dirt with clear water and dry. Rust stain remover afterwards spray undiluted, until the stains are completely wetted. 5-15 minutes of exposure time, thereafter rework with scrubber or brush and finally Rinse with plenty of clear water. Do not mix together with other chemicals, keep away from oxidizing agents. With very bright or white stones, the violet discoloration only completely disappears after a few days due to the UV radiation. This process can be accelerated by rework with an alkaline cleaner such as CleanPrince tile and stone basic cleaners. T.
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