Luminous character adhesive has strong bonding strength, which can firmly bond the shells, light sources and backplanes of luminous characters made of materials such as acrylic, metal and plastic, ensuring that the structure is stable and not easy to fall off even in long-term use. It has excellent light transmittance, which can not block the light emission of the light source, making the luminous characters show uniform and bright light effect. In addition, it has good weather resistance, can resist the erosion of ultraviolet rays, high temperature, rain and snow, and is not easy to aging, yellowing or cracking, ensuring the long-term beautiful appearance and normal use of luminous characters. This kind of adhesive is widely used in the production and installation of advertising luminous characters, signboard luminous characters, shop sign luminous characters, etc., and plays an important role in ensuring the stability and luminous effect of luminous characters in outdoor and indoor environments.