GHOSTSHIELD SILOXA-TEK 8500 READY TO USE: Versatile, invisible, enduring-the criterion of penetrating concrete sealer. WITHSTANDS THE HARSHEST ELEMENTS: Prevent deicing salt, chloride and freeze-thaw damage with our most recommended sealer. Hydrophobic concrete resists rain, moisture, mold and mildew - preventing cracking. Our proprietary silane/siloxane blend offers longer service life and better performance in a safe water-based formula. PREVENT CRACKING, PITTING & SPALLING: Easily applied with a low-pressure sprayer, roller, or brush on a variety of concrete, brick and masonry applications. Use indoors and outdoors on new and old concrete. Approved by the Department of Transportation for use on highways and bridges, approved by our customers for use on driveways, patios and basements. DRIES INVISIBLE: Imbue your concrete with the power of water and salt repellency while preserving its original appearance. Available ready to use or concentrated (5x). Use stand-alone or as a top-coat with a densifiying primer, such as the Lithi-Tek 4500, for increased performance and abrasion resistance. *Not recommended for colored concrete. Color: Clear/ Natural/ Slightly Enhanced.