HDMP_ Element pad assembly is the pad under the heater element that consists of green gasket covered by 1/16″ red silicon foam covered with 1/2″ wide PTFE fabric tape. The EPA is centered on the the seal bar but under the element and is held down with the double sided tape included.  Generally need 2 pcs for each machine.  One for the upper bar heating element and 1 for the lower bar element.