My son wanted to make the globe in his ceiling fan glow-in-the-dark. It became a project night for us.
2 part water-clear epoxy (We used "Easy Cast")
Step 1: Mixing the Epoxy With the Phosphorescent Powder
Follow the instructions for the 2 part epoxy that you use. For the epoxy mix that I used it was equal parts (1:1) resin and hardener. I measured out the the resin and mixed in the phosphorescent powder before adding the hardener.
Step 2: Pour the Epoxy Into the Globe
We poured the epoxy mix into the globe and evened out the epoxy by rotating the globe. I repeated this every 30 mins for until the the epoxy became tacky. This took a couple hours. The epoxy that I used "soft-cures" in 24 hours. I set the globe upright to let the excess settle to the bottom throughout the night and until we I got home from work.
Step 3: Re-install the Globe
Re-install the globe and enjoy.
Note: I have a 40W equivalent LED bulb in this fixture, heat from a halogen bulb might cause damage to the epoxy.