For those using the older water cure solvent based one part carc I have a little advice. The biggest problem with this stuff is the water in the air will start the curing process so Shermin Williams recommends using the whole gallon at once. Once thing the manager at the store told me was to vent some argon into the container. It would displace the air and the moisture with it. I had heard about this before so I had an old regulator for my mig welder so I connected a hose to it and used my argon mix for the job. When I was done pouring out some of the paint I ran the hose in and filled the container with the argon mix. I started using a gallon back in March used it of and on for a few weeks working my cucv. I used it again a couple of months ago to paint my new troop seats. Again I used the argon mix. Yesterday I took it out to paint my deuce fender and the new winch. I was initially skeptical because I could not pry the lid off. It took a lot of work to get the lid off and I destroyed the can. Even so the only chunks were dry stuff from the top that fell in. I had put in a pour spout top that pops out like on five gallon buckets. The chucks came loose when I would take the top off. I could not get it off this time so I just took the top off. The paint had obviously separated but I wanted to manually stir it up before putting it in the paint shaker. After about a minute of getting the solids to move I was able to get it to an even consistency. I used a paint strainer funnel to help get the chunks out and poured all the paint left into a smaller virgin container for the paint shaker. After 10 minutes in the shaker the paint was just fine. There was no skin on the top of the paint at all. Putting the argon in regular paint cans will prevent the paint from skinning also.