Smartseal Solvent-Free Block Paving Sealer is designed to prevent weeds from growing in the joints of block paving. Its solvent-free formulation means it emits no smell or fumes, making it easy and pleasant to apply. This sand hardener and block paving sealer effectively inhibits the regrowth of weeds and moss while protecting the blocks. For optimal results, allow the product to penetrate approximately 20mm into the joints. Apply at a ratio dependent on joint width: roughly 1.5 m² per litre for the first coat and 4 m² per litre for the second coat. Application is simple using a watering can and squeegee. The sealer is formulated to BS5750/ISO9001 standards. It hardens freshly laid sand to prevent weed growth and seals the blocks, protecting them from staining. Benefits include easy application, deep penetration into sand, restricted weed and moss growth, stain and oil resistance, and solidified jointing sand. It offers durable protection for block paved driveways and patios, creating a hard-wearing barrier against oil spills and stains, keeping surfaces looking new. The sealer is weatherproof and durable, withstanding various weather conditions. Coverage is excellent, with 1.5-2m² per litre for the first coat and 4m² per litre for the second coat, making it cost-effective. It is trusted by professionals and recommended by experts. For newly laid block paving, apply as soon as possible. For older block paving, ensure the surface is completely cleaned and bone-dry. Pour the sealer onto the surface in sections and use a squeegee to spread it and allow it to soak into the sand. Apply the second coat within one to two hours of the first coat.