General description The Ronseal Patio & Block Paving Seal Natural is designed to protect and seal patios from weather damage in just one hour. Its powerful formula resists algae growth and protects against oil and fuel stains, ensuring your outdoor surfaces remain in excellent condition. The natural finish provides a barely-there look, preserving the aesthetic of your patio without leaving a sheen. Technical specifications MPN: RSLPBPSN5L EAN: 5010214880874 Size: 5 litres Type: Sealer Coverage: 7.5 m² per litre Compatibility and accessories Suitable for use on granite, limestone, and sandstone block paving and flagstones. Installation Ensure block paving, jointing sand, and paving slabs are dry before starting. Scrub the surface with a stiff bristle brush to remove dust and dirt. If there is any mould or algae, use Thompson's Advanced Patio & Block Paving Cleaner. For oil stains, use Thompson's Oil & Drive Cleaner. Rinse off any cleaners and ensure the surface is dry before applying