I'm not sure how many you can get with 2 oz. probably 4-5 doz. Preheat the bait for about 5 seconds with a propane torch or something similar.
I have my powder in a medium container so I can dip the spinner bait in the powder paint for only a few seconds after heating, and then promptly tap off the excess on the side of the container. After you are done you should then place them in an oven for about 20 minutes at 350. I use a piece of 2x4 with holes for the unfinished spinner bait. They will then be bullet hard!...larry