This is just a silly, but fun project to make something that looks like radioactive waste that has been spilled on a surface.
It's basically fast-curing two part resin (I got mine at Poundland) and some photoluminescent powder (glow in the dark powder/pigment) from ebay.
There are two common types of glow in the dark powder. The older version based on copper doped zinc sulfide, and the much better modern version based on strontium aluminate which glows brighter for longer. Both types are readily available on ebay.
Making the custom glow in the dark spill (or other moulded shapes if desired) is as simple as mixing two part resin in a small disposable mixing pot (I use plastic shot glasses out of Poundland) and adding some of the pigment to it, then pouring it into a puddle on a suitable non-stick surface like silicone or polythene. Note that resin flows well, so be careful to make "puddles" on a flat surface to avoid ending up with slicks that find their way onto more permanent surfaces. Allow the resin to cure (have patience!) until it is fully solid and then release it from your surface/mould.
I prefer 5 minute curing resin for most applications, but you could use the one hour stuff for more working time. However, note that the longer it remains fluid, the further it is likely to creep, and it's very sticky and messy stuff while still in liquid form.

15 thoughts on “Make your own glow in the dark radioactive spill.”
  1. Avataaar/Circle Created with python_avatars Ant Print Design and Print says:

    big c live or big clive? 😀

  2. Avataaar/Circle Created with python_avatars Guy Tero says:

    Clive. Do you ever work? Lol.

  3. Avataaar/Circle Created with python_avatars Wolfyboy says:

    if something is worth doing, it's worth OVER doing!

  4. Avataaar/Circle Created with python_avatars RedMetalic RobotDemon says:

    I bought some glow powder as well. I mixed it with epoxy and now where I glued my sunglasses glows. lolz

  5. Avataaar/Circle Created with python_avatars The Kaiser says:

    Don't worry. I spill Plutonium all the time. It's dangers are vastly overrated.

  6. Avataaar/Circle Created with python_avatars webchimp says:

    Tried this recently with some glow in the dark paint instead of the powder, took a few days to firm up but worked OK.

  7. Avataaar/Circle Created with python_avatars Stefan Höök says:

    Thanks for the tip! going to add this strontium aluminate – powder to my kids beds and make em happy 🙂

  8. Avataaar/Circle Created with python_avatars jsimmons says:

    i find 5 min quick set epoxy. but not resin….

  9. Avataaar/Circle Created with python_avatars JAMES AZBELL says:

    Too bad you can't mix a little PU-238 oxide with that powder, it would glow for at least 80 years… (PU-238 is an alpha particle emitter, but very poisonous)

  10. Avataaar/Circle Created with python_avatars jiří Satelitakxy says:

    I buy on ebay?

  11. Avataaar/Circle Created with python_avatars ThePiGuy24 says:

    it looks more like thorium than plutonium

  12. Avataaar/Circle Created with python_avatars Blizzard says:

    Really confusing directions, I got my dick stuck in a blender.

  13. Avataaar/Circle Created with python_avatars Maria Nasr says:

    can anyone tell me whats this in the red bottle … like a glue ???

  14. Avataaar/Circle Created with python_avatars Zarphus says:

    you could use instamorph in a similar fashion. iM is great stuff. low temp thermoplastic. absolutely fantastic for DIY and repairs.

  15. Avataaar/Circle Created with python_avatars Dan Faulkner says:

    Cool!

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