It is used to join and waterproof between wedi products where they connect, and over the seams of these connections. Used for standard wedi shower installations with the wedi Fundo Shower Base, wedi Fundo Curbless Shower Base, and wedi Fundo Linear Shower Base.
It is used with a wedi sealing tape to create strong connections in wedi Subliner Dry Sheet waterproofing and wedi Vapor 85 assemblies. wedi Vapor 85 steam shower installations are installed using the wedi Sealant 620 between assembly components.