Colorless Grades Create A Separate High Value Market
Foldable and rollable displays need a substrate that survives panel processing temperature without yellowing, and colorless polyimide is the only material doing that at commercial scale. It commands around nine times standard film pricing per unit area and grows at 13.35% against 8.9% for the market. The chemistry differs enough from conventional polyimide that casting expertise transfers only partially, which is why several capable film producers have not entered the segment at all. Panel makers now qualify more than one substrate supplier where they can find a second one. Second sources are still scarce.
Market Impact: Withstands 260 degrees continuously








