Finishes that glow in the dark PHOTOLUMINESCENT PAINT PATENT PENDING What is it? Photoluminescence is a property of this new finish, where a light energy charged material radiates light in the dark for a given period of time. How long does this luminescent effect last? Specifically in terms of this original innovation developed by our R&D team and depending on a few factors, up to 12 hours of light can be emitted. How is this done? We apply this photoluminescent finish on an up to 40 micra thick colour undercoat.