Ultraseal is a unique waterproofing membrane that utilizes an advanced Active Polymer Core (APC) technology that is ten times less permeable and more chemically resistant than traditional active waterproofing membranes. Ultraseal combines the APC technology with a strong geomembrane liner for exceptional performance. Ultraseal contains zero VOC, can be installed in almost any weather condition to green concrete, and most importantly, has proven effective in both hydrostatic and nonhydrostatic conditions. Two Ultraseal membrane composites – BT and SP – provide waterproofing protection for a myriad of applications. Ultraseal SP is a three component membrane consisting of the APC core layer between a geotextile and a geomembrane. Ultraseal BT composite membrane consists of the APC core layer integrally bonded to a geomembrane.