Uncover your patio's hidden beauty with SmartSeal Xtreme Patio Cleaner. This powerful cleaner tackles ingrained dirt and grime, including stubborn black and white spot algae, without the need for pressure washing. Simply sweep away loose debris, wet the surface, and apply the diluted solution (1:1 ratio, unless tackling black spot algae, then use undiluted). Leave it to work its magic for up to 60 minutes, ensuring the surface remains wet throughout. A single application usually suffices, but for persistent stains, a second application might be necessary. 5L of this efficient formula covers up to 40m². Just rinse thoroughly with water once the dwell time is complete. Use a sprayer or watering can for easy application. Restore your patio's charm - effortlessly. Contains four powerful active ingredients. A fast acting, high performance patio cleaning product, with four powerful active ingredients. Patio Clean Xtreme offers the simple way to keep any patio clean often avoiding the need for pressure washing. It is important the patio remains wet throughout during 60 minute period, as the product becomes inactive once dry. Most ingrained organic matter and grime will be removed after one application, but sometimes a second application may be required to remove all black and white spot algae. Restore your home's charm with this SmartSeal Xtreme Patio Cleaner. This fast-acting, high-performance patio cleaning product contains four powerful active ingredients. It offers a simple way to keep any patio clean without the need for pressure washing. The patio must remain wet throughout the 60 minutes, as the product becomes inactive once dry. Most ingrained organic matter and grime will be removed after one application, but sometimes, a second application may be required to remove all black and white spot algae. Diluted 1:1, 5L of the product can cover up to 40m². It is a proven, tested, and trusted driveway cleaner that can be applied using a sprayer or watering can. Instructions for use: 1. Sweep away loose debris and areas with a heavy build-up of dirt and grime. 2. Wet surface area with water. 3. Dilute the product at a ratio of 1:1. If removing the black spot, don't dilute. 4. Apply product to the surface using a watering can or sprayer. 5. Make sure that the surface area doesn't dry out before rinsing off. 6. Leave on the surface area for up to 60 minutes. 7. Rinse the area with water. Quantity: 5L.