STONETECH® Heavy Duty Sealer. ST309-0105: 5 Gallon (18.9L) Drum - 1 unit. STONETECH® Heavy Duty sealer is a water-based penetrating sealer that provides advanced stain protection on a variety of stones, all while preserving the natural look of the stone. It protects against against oil and water based stains on natural stone, tile, masonry and grout in interior and exterior applications. A safer alternative to solvent based sealers, STONETECH Heavy Duty Sealer is better for you and the environment, and comes with a 25 year product guarantee.
