UGL Drylok Natural Look Curing Membrane & Penetrating Water Based SealerDRYLOK Masonry Treatment penetrates deep to seal and protect masonry against acids, alkalis, household cleaners, gasoline, oil and salt. This VOC compliant, water base formula seals against dusting and retards spalling (surface cracking and pock marking) and weathering. Use on interior and exterior masonry surfaces, including concrete driveways, basement floors, garage floors, concrete sidewalks, patios, terrazzo, brick, and slate. Coats: 1 coat Clean