Bostik Natural Stone Sealer is a water-based sealer for use on previously unsealed porous natural stone paving. It seals natural stone to help prevent staining and reduce efflorescence. It provides excellent resistance to water, oil and dirt.
Bostik Natural Stone Sealer is ideal for external use for sealing natural stone paving on well-drained patios, paths and driveways but is also suitable for interior use. It is not suitable for use on black or dark coloured natural stone.