Recently I decided to start a fresh palette. The old one was maintained for over a year. The Golden Open Acryics along with a sealed palette like Mijello, if refreshed with new paint when needed make that possible. It works because the paint slowly thickens instead of skinning over. I recently bought a gray palette, which is a great neutral backdrop. I still have my white one, I’m letting it dry completely so I can easily peal off the old paint. I will keep them both going.