Dilute FugaClean in a ratio of 1:5 with water (1 part of product and 5 parts of water). Spread the solution on the surface to be treated, scrub with a scrubbing brush, a brush, a broom, a scrubbing pad or a floor cleaning machine for a few minutes, then rinse thoroughly with water. To speed up the cleaning of particularly dirty grouts and interstices, you can use the product undiluted or diluted up to 50% with water. For periodic floor maintenance cleaning, we recommend using FugaClean diluted in the washing water in a ratio of 50-100 ml of product per 5-10 litres of water.