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This topic is available here on The Repair-Place forum | After I am done painting a room, I have about half gallon left over. What is the correct way to store leftover paint? |
| First make sure the top of the can (the groove that goes all the way around) is not full of paint and is as clean as possible. This helps the can seal better. Then take Saran Wrap (plastic wrap) and cover the top of the can. Replace the top and tap on with a rubber mallet. Now store the can upside-down, yes upside down!, in a cool place. | |