PF pressure film can show the distribution of tire contact pressure. The intuitive images can be used for qualitative and quantitative analysis, and can quickly display the contact area, edge area, tread length and width, and pressure distribution of section of the tire. Then it is easy to compare the characteristics of a variety of tires with each other, or to compare the characteristics of a tire under different loading and inflation conditions. These information helps designers and manufacturers analyze the composition and tread design of different tires, perform quality control measurements, making reference standards, and assess the impact of vehicle suspension.