PI white covering film Easily apply to multiple jobs with one click! Quick Apply shows you recommended jobs based off your most recent search and allows you to apply to 25+ jobs in a matter of seconds! Product SpecificationItemTest methodSpecificationWidth Specification500/255/250±1mmInk thicknessSpecification18±2umPI thickness Specification12.5um、25um、50umAdhesive thickness Specification13um–40umShelf life<10℃,<65%RH3months23℃±3℃,<65%RH15days