HydroBlocker Tekatrak VB2 is an internal metal sealing tape coated on one side with a substance which binds with concrete and provides good sealing. It is used for sealing temporary construction joints on the basis of a “white tub” principle in order to prevent water-ingress from both sides. Due to its width and coating on both sides it is, among other things, suitable also for vertical wall-to-wall joints. Easy application. Joints of individual elements simply overlap.