Natural Stone Countertop Sealer
This information reflects our best understanding of product composition in 2016.
Natural stone countertops, such as granite or marble, are typically porous and must be sealed periodically to prevent spills from seeping into the stone and causing staining, or causing unsanitary conditions. Every countertop will require a...
Natural stone countertops, such as granite or marble, are typically porous and must be sealed periodically to prevent spills from seeping into the stone and causing staining, or causing unsanitary conditions. Every countertop will require a different frequency of sealer application, depending on its density and the manner in which it is cleaned. Some natural stones do not require sealing at all. Manufacturers of natural stone countertops generally recommend that a penetrating or impregnating sealer be used when a sealer is required, because it is longer-lasting than a topical treatment. These sealers are poorly disclosed, but commonly contain proprietary fluoropolymers.