The width can be customized in the range of 800~1600mm, the conventional 900/960/1040/1070/1260mm, etc. are optional; the thickness range is 0.03~0.18mm, the conventional is 0.03/0.04/0.06/0.08/0.10/0.12/0.128mm, etc. Optional, the roll diameter and meters can be customized, the film has uniform thickness, good flatness, reduces processing loss, uniform blue color, good concealment, light blue and dark blue are available, excellent temperature resistance and durability, It is suitable for coating silicon coating process, has the functions of isolation, filling and protection, and is easy to peel off.