Prevents sound bridges thanks to the “placeholder function”; leveling and laying mortar cannot penetrate the edge joint. On raw concrete floors, floating screeds or screeds on a separating layer, wooden planks and chipboard floors, old ceramic and natural stone floors. For the floor/wall connection area to avoid sound bridges when processing flowable floor leveling compounds (e.g. PCI Periplan, PCI Periplan Fein), stable fillers and tile adhesives (e.g. PCI Flexmörtel, PCI Nanolight, PCI Nanoflott light) or parquet and flooring adhesives on Allen suitable surfaces. Purchases made in the same time frame will be combined, please request the total amount before payment (after purchase). PCI laying mortar 20 kg tile adhesive tile adhesive flexible mortar S1 flexible adhesive OTTO dou.