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I have always had problems with my white powder paint when it came to fluid beds. I have tried over 30 brands of white and have finally had one custom blended to where I thought it was as good as it gets when it comes to using it in a fluid bed. I still got volcanoes with my final white, but nowhere near to what I have had in the past. In my final white I would get the volcanoes and then I would just take a popsicle stick and stir it occasionally and they would go away, only to come back shortly thereafter. Yeah, I know you can get a vibrator to put under the fluid bed, but I didn't want to start clamping and drilling and gluing to retrofit my fluid bed. So I had some time yesterday and thought of a post or posts by someone who said that they used the "Tyvek" envelopes you get from the Post Office. In looking at these, doesn't seem like much and I was very wary. I've been down this road before and I didn't want to go there again. I put the envelope to my mouth and blew in there to see if air would indeed escape. Wow don't think this is going to work. Anyway my curiosity got the best of me, and I cut out a couple 3" diameter discs. I took out a new fluid bed cup, and glued the disc on with gel superglue. Turned the cup over and placed it on some wax paper on my workbench, which then I put some heavy books on top of the cup to hold it in place to let it dry. Today about 2:00 pm I need to paint about 100 white jigs. I took the books off, pulled off the waxpaper from the bottom of the cup, and everything looked fine so far. I then sanded off all the excess glue on the side of the cup, stuck the cup into the fluid bed and started to add my white powder. Plugged in the air pump, opened the air valve and nothing. A little bit more and nothing (you tend to do this really slow with powder paint as I don't have to explain) a little bit more and voila my powder was boiling soooo nicely. I let it run for 10 minutes to see what would happen. This is what powder paint fluid bed dreams are made of. The powder boiled nicely, slowly turning over on itself as the bottom came to the top. I marveled at this creation and thought to myself why didn't I try this before. Finished the 100 jigs in no-time and the powder was still bubbling like it did when I started it couple of hours ago. So with that said, I hope this isn't a fluke and that all the stars were lined up for me today to make this happen. I will post back with my findings in several months, to let you know how this goes. I'm thinking that since it is winter here in IL, the powder is drier, thus making everything ideal. We shall see when April comes. Finally I want to thank whomever that person(s) was who posted this info. I posted this to let you guys know that this might be something to try if you haven't done so yet. This is all in the early stages for me so we'll see how it goes.