AK type waterstop tapes used in contraction joints and this economical system is preferred to be used in structures with low water pressure. Since its thickness is less than other types, it must be bonded very well so that it does not folds in the concrete.  AK 20/2 is defined as AK 20/3. It is shipped in rolls of 20 meters.

AK type waterstop tapes used in contraction joints and this economical system is preferred to be used in structures with low water pressure. Since its thickness is less than other types, it must be bonded very well so that it does not folds in the concrete.  AK 20/2 is defined as AK 20/3. It is shipped in rolls of 20 meters.