Cobble Impregnator NS is an eco - friendly, water - based, clear breathable sealer with super low VOCs. It's perfect for protecting natural stone, marble, concrete, and porous tile surfaces. This sealer gives a natural, non - shiny look, protecting surfaces without altering their appearance. Its breathable formula allows application in areas where film - forming sealers won't work, like on surfaces where moisture doesn't easily dissipate, such as stone over concrete slabs. Each gallon covers about 200 square feet per coat, and a 5 - gallon container covers around 1,000 square feet. Coverage depends on surface porosity, joint width, and application method. When applying over previously sealed surfaces, film - forming sealers must be stripped first. It can be applied over non - film - forming sealers if the prior application is worn away. This sealer resists stains, water, and sun damage and can be used for roof protection with low or no sheen, but it's not for sealing stucco cracks.
To use Cobble Impregnator NS, first, remove all grease, oil, and other contaminants from the surface. Make sure the surface is clean and dry. If it's concrete, it should have cured for at least 28 days, and smooth concrete needs to be etched before sealing. You can use Cobble Clean and Cobble Prep for specific cleaning situations. Apply the sealer in one uniform coat using a roller or sprayer. Remove any excess or puddled product within 15 minutes of application or before it dries. If you need to recoat, do it while the first coat is still wet. Always read the label thoroughly before applying the product. For maintenance, just keep an eye on the protected surface. If you notice the protection wearing off, you can re - apply the sealer following the same steps.
