It is a type of waterstop tape that is placed on the concrete outer surface with vertical nails in order to prevent the concrete from peeling off and to increase the water resistance in the gasket. The base is flat and no expansion gap designed in the middle. It is used in partial contraction and full contraction joints in raft construction – raft construction and retaining wall to retaining wall joints. They are produced in three different widths (240, 320, 500 mm).

It is a type of waterstop tape that is placed on the concrete outer surface with vertical nails in order to prevent the concrete from peeling off and to increase the water resistance in the gasket. The base is flat and no expansion gap designed in the middle. It is used in partial contraction and full contraction joints in raft construction – raft construction and retaining wall to retaining wall joints. They are produced in three different widths (240, 320, 500 mm).