The film you receive from us is of the highest quality: Made in Japan, printed in Taiwan. All Northstar films are 30u-40u (micron) thickness, versus 20-25 u (microns), more commonly found in China. The thinner the film, the harder it is to control quality, increasing the occurrence of 'fish eye' (a distortion that results from contaminates on the film). That can also present problems in application. 

Film should be store between 69 ° - 73 ° F (+/-3 °), in a room where the humidity is between 50-60%.