I keep an empty 5 gallon plastic hydraulic oil bucket at the pattern plate with the paint and oil mixture in it. The roller stays inside it, too. The lid will snap back in place to keep it sealed up tight enough that it lasts for a long time without any attention. If I haven't used the plate for a few months I can just pop the lid off, stir the mix a bit with the roller, and roll a fresh coat on in a jiffy.

SRH

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