Concrete surfaces treated with Nox-Crete sealers Stifel SC for horizontal and Stifel VC for vertical surfaces are guarded against damage from freeze/thaw cycles, deicing salts and the absorption of water without modifying the surface appearance. It’s safe and easy to use, has very low odor, allows treated surfaces to breathe naturally, protects from delamination and spalling and extends the life of concrete structures.