Thompsons One Coat Patio & Block Paving Seal - 5L Enhances & protects your patio in one coat New patios cost money and need protecting from the elements. That 's where Thompson's One Coat Patio & Block Paving Seal comes in. In just one coat, it will properly seal, stabilise and waterproof patio & block paving. No problem. Improves the colour and finish of patios and paving. Resists oil, dirt and fuel. Easy to clean & apply. Surfaces: Granite, cast, sandstone, limestone block paving and flag stones. (* THis product is not recommended for use on black limestone) Coverage: This 5L tin will cover about 30m2 in one coat, depending on the texture and type of surface you're coating. Dry Time: About 1 hour. You can park your car on it after 24 hours. Again, timings depend on the texture and type of surface you're coating. Clean Up Clean all your equipment with white spirit. Using One Coat: Pour the tin into a roller tray and use a long pile roller to apply in long strokes. On textured block paving, make sure any puddles are spread into dry areas. It's just one coat, so that's it, job done.