This is an Isomat Aquamat Flex 2-component waterproofing cement-based slurry, typically used for sealing concrete and masonry.The red container pictured specifically contains the 8kg component B emulsion resin, designed to be mixed with a 25kg component A powder mortar.It is suitable for waterproofing potable water tanks, basements, and roofs, offering high elasticity and crack-bridging capability.