StoneTech® Professional BulletProof® Sealer is a brand new, advanced formula that bonds with stone for improved wear resistance. It also features an advanced penetrating microbond that will help protect your stone and tile against tough oil and water-based stains. BulletProof® Sealer makes cleaning stone easy and helps preserve the natural look of your stone and tile. BulletProof® Sealer can be used on natural stone such as marble, granite, limestone, slate, saltillo, bluestone, flagstone, travertine, and sandstone, in both interior and exterior applications. Price listed is for (1) StoneTech BulletProof Sealer - Gallon. The date mentioned on the product is manufacturing date and not the expiration date .