ABG Deckdrain 1250/HF360 is a geocomposite drainage layer comprising a high performance single cuspated HDPE core with a woven geotextile thermally bonded to one side. The geotextile has a flap that extends beyond the core on one edge. The product is practically impermeable one side. It is used as an engineering drain layer where concrete can be poured onto the geocomposite.