Clean and restore your patio with the StoneCare4U Essential Patio Cleaner, a ready-to-use cleaner tailored for patio cleaning. Suitable for all outdoor stone and masonry surfaces, it also works on algae, lichen and black spots, removing dirt and grime even if the patio hasn’t been cleaned for years. The acid-free, alkaline-based solution won’t damage or etch the stone surface like acid cleaners. It contains a biocide that helps to eliminate organic matter between slabs and grout, such as weeds, green growth and leaf mulch, within just two hours. How To Apply: Before use, remove any loose debris from the work surface and ensure you have adequate safety wear, i.e. gloves, suitable protective eyewear, face mask and clothing. Note: Following the instructions below, perform a small test application in an inconspicuous area before use. This will indicate the suitability and effectiveness of the product for your surface. If unsuitable for your requirements, do not proceed. The cleaner is to be used neat or diluted 1:1 with clean water. Carefully transfer the cleaning fluid from the bottle to a pump sprayer or watering can. If these containers are not available, then cleaning fluid can be used directly from the bucket. Apply generously and leave to work for at least two hours. The cleaning fluid needs to be left on the surface for at least two hours. During that time, the surface must not be allowed to dry out. If necessary, mist with additional cleaning fluid or with a fine mist of clean water to prevent the paving from drying. Work the area(s) of stubborn staining with a brush, if necessary, but ensure the surface remains wet at all times. After at least two hours of dwell time, the treated area should be washed down with clean water first to neutralise the cleaner before, then power washing off for great results. Please note the cleaning fluid can harm or possibly kill vegetation, so try to avoid washing off garden or lawn grass. If this is unavoidable, then rinse with plenty of clean water to dilute the cleaner. In areas of heavy soiling and extreme, stubborn black or white lichen spots, it may be necessary to extend the dwell time of the cleaner to up to four hours or overnight, where necessary, before power washing off. To achieve perfect results on aged, stubborn black or white lichen spots, test a small area to ascertain the required dwell time necessary to remove the marks – then follow the instructions above. Two to three applications may be needed. Please Note: The cleaner contains a chlorine-type agent as an active ingredient and will stain fabrics and sensitive materials. Take special care to avoid contact with fabrics and tarmac during application. The fluid might cause slight lightening of some surfaces – always try the product in an inconspicuous area before use. Coverage: Up to 25m² per 5L container. Coverage varies depending on surface contamination. Quantity: 5L. Pack of three.