Commercial Kitchen 100% silicone sealant is a one-component chemically curing material perfect for sealing in commercial kitchens and is approved for food-zone areas. It is safe for incidental food contact. It provides a durable, waterproof seal with minimal shrinkage. Offers long-lasting flexibility and excellent adhesion. Once cured, it is unaffected by temperature extremes. Mold- and mildew-resistant. Adheres to glass, ceramic, porcelain, fiberglass, most metals, plastics, rubbers, and non-oily woods. Use for caulking and sealing: countertops, backsplashes, sinks, fixtures, and repairing loose tiles. Flexible, shrink- and crackproof. Not paintable, paint substrate surface before applying sealant. 100% waterproof.