Shield. Also featuring exterior concrete sealed by Granite Shield.
Granite Shield has no plastic or silicone and it is a breathable, penetrating sealer and will not scratch or yellow.
"My name is Karan Barber and I am the Granite Shield Distributor for the North Carolina area. This product is terrific. It truly is amazing! We have Shielded several types of stone and put them to the test. We put red wine, red Kool-Aid, iodine, brake fluid, oven cleaner, lemon juice etc. on the shielded stone, left it for 24 hours and it wiped right off with a wet paper towel. Water beads on honed stone."