My only concern with using this stuff on floors is the thickness of it, it could potentially be a hazard in itself. I’d be tempted to use an oversized non slip laminate to effective smooth the edge out.
I use ORALUX 9300 Photo Luminescent Cast and have done for some time now. It is the best performing all-rounder photoluminescent that I have used. This material often comes in an off green’sih type tinge to it and often on calendered budget vinyl or cheap HIPs plastic. Oracals is the closest to white you will find. We always print directly to the material, rather than cut vinyl over-lay.
If you are going to stick it to the floor. make sure you have a good clean surface for it to adhere to, and use a heatgun and a firm foam roller to promote adhesion, or at least heat and press firm with a rag or thick felt squeegee. heat is important because the ground is cold and the vinyl will become stiff and not lay perfectly flat and the adhesive will not bond either. a tip is to apply heat to the ground after you have cleaned it to make sure there is zero moisture and helps the initial bond. the print will need laminated to protect it from abrasion and chemical damage. You could also use an anti-skid laminate.