PETROBLOK L is a water-based fluorochemical liquid product that is used as a sealer to penetrate limestone as well as other mineral products (such as stone, unglazed terra cotta, concrete and brick). The product forms a durable, non-film-forming, transparent, protective barrier against oil and water on porous surfaces.
Petroblok L does not change the appearance of the product. The product provides excellent oil and water repellency, stain resistance, and ease of cleaning.