MIGUPREN is a comprehensive program of sealing strips for sealing of movement joints against nonpressurized water. (Please kindly use the product colors for this sentence) Just in Germany millions of square meter of flat roofs and covered areas exists and has to be sealed against non-pressurized water. The most sensitive area is the sealing of the expansion joints. Very often, the sealing of the floor- and wall-connections are the reason for leakages, which damage the structure of the building and occurs in high costs for redevelopment. MIGUA provide with the sealing strips MP, FFD, WFB and DK four high sophisticated and well-experienced sealing strips, which meet all requirements of an effective, permanent and high quality sealing strip