NOVELTY - Simultaneous application of multiple fuel cell component coatings on a substrate comprises: providing a substrate (105); and simultaneously coating two or more solutions onto the substrate under laminar flow such that a non-porous layer solution (115) is simultaneously coated on a first porous layer solution (110), where the first porous layer solution comprises an electrode ink and the non-porous layer solution comprises a membrane solution.    USE - The method is useful for simultaneous application of multiple fuel cell component coatings on a substrate and forming membrane electrode assembly (claimed).    ADVANTAGE - The method: improves manufacturing efficiency and reduces manufacturing costs by reducing the number of passes through the coating machine; reduces component costs; utilizes component solutions that are less expensive; reduces additive process defects and start-up/shutdown waste; improves durability and/or performance resulting in a more intimate and tightly bound interface between the layers; utilizes reduced amount of raw materials required to meet performance requirements; and allows two or more solutions to be simultaneously applied to a substrate while still maintaining distinct layer relationship between the coatings after deposition and drying, and with no noticeable mixing or contamination at the interface of the layers.    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for making a membrane electrode assembly comprising simultaneously coating two or more solutions onto a first substrate to form a cathode substrate, where the coating is performed under laminar flow such that a membrane solution is simultaneously coated on a cathode solution; and simultaneously coating two or more solutions onto a second substrate to form a anode substrate, where the coating is performed under laminar flow such that a membrane solution is simultaneously coated on a anode solution and hot pressing the cathode substrate to the anode substrate such that the cathode and anode are on opposite sides of the membrane.    DESCRIPTION OF DRAWING(S) - The figure shows a schematic view of two-layer simultaneous coating of a fuel cell component.    Substrate (105)    First porous layer solution (110)    Non-porous layer solution (115)    Coating die (130)    Porous reinforcement layer (133)