The Thompsons Patio & Block Paving Seal 5L is a high-performance sealant designed to enhance and protect your block paving and flagstones. This powerful formula provides a protective barrier against various outdoor elements, including oil and fuel stains, and resists algae growth. It's easy to clean and maintain, making it suitable for both residential and commercial use. Drive on after just 24 hours, minimizing downtime. It's suitable for all block paving and flag stones, and is available in a 5L size.