Drive Clean Xtreme is an extremely efficient & high performing cleaning solution. This product will enable you to get a professional result without the need of any professional equipment. The Drive Clean Xtreme has four powerful active ingredients that quickly removes Black Spot, Algae, Lichens, Moss & Dirt from Block Paving, Imprinted Concrete, Concrete & any other hard surfaces. Please note; this product isn't recommended for Tarmac. Smartseal Driveway Cleaner Xtreme is a quick, high-performance driveway cleaning product, with four powerful active ingredients. Drive Clean Xtreme offers a simple way to keep any patio clean, often avoiding the need for pressure washing which can potentially damage the surface. Instructions for Use - Application Guide; 1. Sweep away loose debris & areas with a heavy build-up of dirt & grime. 2.Wet surface area with water. 3. Dilute Drive Clean Xtreme at a ratio of 1:1. If removing black spot, don't dilute. 4. Apply product to surface using a watering can or sprayer. 5. Make sure that surface area doesn't dry out before rinsing off. 6. Leave on surface area for upto 60 minutes. 7. Rinse area with water.