Maxseal Flex is a two part product, part B is a mortar based on a mixture of special cements, additives and well graded fillers and part A is a liquid with a special syntheticresin as a base. USES Waterproofing & protection of potable water tanks, fishponds, water features, swimming pools and reservoirs. Maxseal Flex is available in grey and white and covers 1 – 1.5 m2 per kg per coat, varies depending on substrate.