Blast away stains with the StoneCare4U Essential Efflorescence and Salts Acid Remover. This is a high-performance formula for cleaning all types of external masonry, brick, granite and other natural stone surfaces. Certainly, this powerful and fast-working formula is easy to use with a sponge, brush or sprayer. In short, it dissolves and acts as an efflorescence remover and cement mess from acid-resistant natural stone. How To Apply: Remove any loose debris from the work surface before you start and ensure adequate safety wear, i.e. gloves, suitable protective eyewear, face mask and clothing. The product is to be used neat or diluted up to 1 to 5 with clean water. Always perform a small test area to determine a suitable dilution rate and dwell time. First, wet the surface, then apply the remover, neat or diluted with water up to 1:5. The dilution rate will depend on the extent of the contamination. Immediately spread the product evenly onto the surface with a sponge, brush or sprayer. Leave to dwell for 10-15 minutes, scrub the surface, and then wash away with plenty of clean water. Above all, do not allow the product to dry on the surface. In cases of heavy contamination, it may be necessary to repeat this procedure. Please Note: It is unsuitable for polished stone surfaces sensitive to acid, such as limestone, marble, manufactured stone, etc. In case of doubt, test the product in an inconspicuous area first to determine the suitability of the product. Certainly, this test is important as permanent damage to acid-sensitive surfaces can occur. In addition, surfaces such as chrome, enamel, wood, and other sensitive surfaces must be protected against splashes and vapours. Acid-containing cleaners can develop vapours that may damage sensitive surfaces. Coverage: 15 to 30m² per litre. Coverage areas will vary depending on the extent of the contamination. Quantity: 5L. Pack of two.