Powder stays good as long as you keep it in constant climate. I still got powder from a few years back and tested it with no flaws.
I got another person requesting maybe the same green as well. I can order 2 lbs. at a time and that can do about 8-10 regular 15" car rims. So it goes a long way for just 2 lbs. If I have enough requests for that color, then i order it. If not, I require a deposit for the powder just so the person lets me know they are serious. This way it ensures me no loss of money with nothing to use that color on
