PF pressure film is one important tool for fuel cell development and design. In a fuel cell, many plates are stacked in a small space to separate the flow of hydrogen and oxygen. Maintaining or improving the uniformity of large area contact pressures between these plates is an important factor in fuel cell design and function. Eliminating some of the possible vulnerabilities is also a key to effective fuel cell applications. PF pressure film provides reliable data for analysis of the above problems in fuel cell design and manufacturing.