NativeStone Shield penetrates concrete on a molecular level to create a protective, yet integrated barrier against stains and scratching. While all NativeStone products come pre-sealed, this exclusive sealer is now available for application on heavily used NativeStone concrete sinks or bathtubs to ensure years of protection.Clear protective coating for NativeStone concrete sinks, bathtubs and countertops manufactured by Native TrailsHighly stain resistant - protects NativeStone concrete from discoloration and wearFood safe and non-toxic; approved for use on kitchen and prep sinksUV protection for use on NativeStone concrete products installed outdoors4 oz. size appropriate for use on sinks and smaller items; 8 oz. size appropriate for use on bathtubs and larger itemsEasily applied with paint tray and foam brush (not included) Specification FileManufacturer's Part Number(s): SKIT82-NS