DELTA®-DRAIN 6000 is a high performance, threedimensional, 2-layer drainage composite. It consists of a dimpled drainage core and a high strength needlepunched polypropylene (PP) geotextile (non-woven) with excellent filter characteristics. The drainage core is made from a special co-polymer polypropylene that provides high impact and tear resistance, and is unaffected by environmental stress cracking.
The nonclogging geotextile is fully bonded to the dimpled drainage core, which prevents it from being pushed into the flow channels by the load of the overburden material.