While the carbon paper will corrode relatively quickly on the anode side it is less expensive than a more durable titanium screen. The carbon paper on the anode side will have to be replaced as it wears away. In addition to electrical contact the carbon paper provides a pliable mechanical support between the current collectors and the catalyzed membrane assembly. Fiber-reinforced silicone gaskets and Teflon gaskets are used for sealing and insulating washers are used to fix the compression of the inner silicone gaskets. The entire assembly is clamped together using stainless steel bolts.
Assembly begins by pressing the four insulating pins into the anode end plate.
The drawing for the end plate is shown in figure 5. Then the Teflon gasket is slipped over the pins followed by the gold plated current collector plate. The gasket template is shown in figure 6 and the current collector drawing in figure 7. Next a fiber-reinforced silicone gasket is placed on the stack and two sheets of carbon paper are fitted into the middle of the gasket. The template for the carbon paper is shown in figure 8.