The POLYCAST® Presloped System is designed for a variety of applications, both indoors and outdoors. POLYCAST® is made of polymer concrete, a high strength, chemical resistant, closed cell material. As a result, POLYCAST® drains offer a high degree of chemical resistance, have a water absorption value of less than one percent, and are more than four times stronger than ordinary Portland cement concrete. Rapid drainage, durability and resistance to freeze/thaw cycles make POLYCAST® ideal for outdoor applications. The 24- and 48-inch components make POLYCAST® extremely versatile.