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The Oak Ridge National Laboratory (ORNL) has developed an easy-to-apply all-polymer lightning protection material. The material is an intrinsically conductive polymer such as polyaniline (PANI) added to the thermosetting cross-linked polymer divinylbenzene (DVB) to form an adhesive layer with a thickness of 0.25-0.4mm. Using 3D printing technology to coat the material on the surface of carbon fiber reinforced composite material (CFRP), it can be used as an effective protective layer for aircraft lightning protection.