Will This Make Paint Go Bad?

[mjs1217]

I recently bought a small container of 500 Zap Sport paintballs (I'm on a very small budget), but I don't think I'll be able to play with it for a pretty long while. So my question is this: I have already opened the container, but if I keep the lid screwed on anyway untill I use the paint, will it go bad? (Assume I won't be able to use this paint for multiple months).

Thanks,
-mjs

[yaddatrance]

Keep it cool and in the dark, and remeber to rotate it once a week.