You can find them pretty much at any art supply store, some version of a Stay-Wet acrylic palette. They work fairly well, and come with all you need, including a hefty price tag. I have two of them that I have used over the years. The problem is the lid. It bends and before long, it No Longer snuggly fits the tray, air is able to get in and your paint dries out.
On one of my recent trips to Home Goods I came across these tightly sealing cake trays.
The size was perfect, it wasn't so deep that I would
have any trouble using either my brushes or palette knife. The lid had a really tight seal(since it was originally meant for a cake). The best part, it was about a third of the cost to replace the no-longer sealing stay-wet palettes I was able to pick up three trays for the cost of one traditional stay-wet system.
So What supplies will you need:
1. A metal cake pan with tightly sealing lid. ( since finding mine at HomeGoods I have also seen them at other stores for about the same reasonable price)
2. Spray bottle /water
3. paper towels
4. wax paper/baking parchment paper
5. disposable palette sheets (optional)
1. Fold up a double thickness
of the paper towel so it will fit
comfortably in the bottom of the tray.
2. Add some water to the paper towel and let it soak it up. You don"t wand to flood it, just enough to make wet all over. Pour off any excess water.
3. Cut or tear a piece of wax paper or parchment paper to the approximate size of the tray. Lay it on top of the damp paper towel.
4. I use disposable palette sheets on top of this. That way the paint stays soft but not too wet.
Have fun using your new Stay-Wet palette.
Be sure to cover tightly when not in use.
Have a great week and stay safe.
1310 Pendleton Street
SANNA Fine Art