I figured the only thing in powder paint is polyester resin and pigment so what exactly can go bad, right? Well for the last year or so I've been chugging right along using a Kawasaki green powder and enjoying much success and shiny happy bullets. Suddenly my bullets went from shiny and glossy to extremely rough and flat. I tried to eliminate any variables so I got a new shake-n-bake container, fresh powder from the airtight container it is sealed in and new airsoft BBs, and still the poor finish. I can't for the life of me figure out what might have happened to cause this. Any input would be appreciated. For what it's worth the old container of Harbor Freight red still works just perfectly. So much for higher end powder.