Quote Originally Posted by ScottP View Post
Looks like it came from Fukishima; what's its half-life? Very nice pics and explanation; thanks for posting.

Regards,
Scott
They claim this glow powder will glow a very long time, but I really don't think you can go by that, but it does glow for a lot longer than anything else I see. Here is what they say on their site about this glow powder.....

Brightness Rating: Very High (33000)
Duration: Very Long (24+ hours)
Glow Color: Green-Yellow
Daytime Color: Very Light Green
Not compatible with water-based mediums
Grade 0, 55-85 micron
Brightest Glow Powder Sold Anywhere