Any surface can become slick when exposed to water or ice, not just concrete. However, if you want to maintain the color of your concrete, and all of the other benefits of sealed concrete, you need to seal it. You should plan to seal your concrete every 2 years (sooner if concrete is exposed to extreme weather conditions.) Sealing concrete enriches the color intensity whether the color is integral, a stain or dye, or from color hardener. Sealers can add sheen to the concrete such as a high gloss or no sheen like a matte. Concrete sealers block the penetration of dirt, oil, grease and chemicals and make the concrete surface much easier to clean. Concrete sealers also help to prevent wear and tear from high foot and auto traffic areas.