Mar-flex Waterproofing and Building Products is the leading innovator in the waterproofing industry, and continues with their reputation with the new UltriSeal Concrete Radon Sealer. UltriSeal is built to protect against radon and other harmful chemicals in the local environment. UltriSeal is versatile, able to be applied to any concrete surface, including walls and even driveways. UltriSeal is the most effective sealant when you need protection from the harmful effects of radon exposure. Check out UltriSeal today!