We have a product recommendation for your project needs:

Chimney Solvent-Based

8510 Concrete Sealer Bucket Image

This deep penetrating formula offers exceptional protection and a service life of up to 15 years. Thanks to a proprietary flurocarbon, this near 100% actives silane/siloxane blend is the only sealer capable of repelling water, deicing salts, oils and grease. Its hydrophobic nature resists freeze-thaw, mold, mildew and moisture intrusion. Provides a flat, natural finish and creates a long-lasting water-repellent surface that beads water.