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PI Black covering film (CVL) is a black polyimide film coated with high-performance thermosetting epoxy resin adhesive, with release film or release paper as the isolation layer, after high temperature curing to form an insulating heat-resistant black covering film. The product has excellent softness, high temperature resistance, shielding and other properties. Suitable for high-end LED series products, such as automotive taillight, backlight, light strip, FPC line and so on