Acrylic paint can skin over on an ordinary palette in about an hour. A wet palette keeps it soft and workable all day, and often overnight. Pamela Caughey of Art & Success shows the homemade version she learned in a workshop with painter Nicholas Wilton: a cafeteria tray, blue shop towels, water and a sheet of tracing paper. Her paint was still fresh 15 hours later.
How a wet palette works
The towels underneath act as a water reservoir. The paper on top is a thin membrane. Water seeps up through the paper into the paint as fast as the air pulls it out, so the paint stays moist without getting watered down. You get longer working time without adding a retarder or medium to the paint.
How to use a wet palette: what you need
- A shallow tray with a lip. Pamela's cafeteria tray is about 14 x 17 inches. A baking sheet or a plastic food box works too.
- Blue shop towels, four layers. They hold more water than kitchen paper towels and don't fall apart.
- Tracing paper cut to the tray size.
- Water and a bowl or sink to drain into.
Homemade vs store-bought
| Homemade tray | Store-bought wet palette |
|---|
| Cost | A few dollars | About $20 to $35 |
| Size | Any tray you like | Fixed |
| Lid | Add plastic wrap or a second tray | Built in, keeps paint for days |
| Refills | Shop towels and tracing paper | Branded sponge and paper |
Getting the water level right
This is the part people get wrong. Too wet and the paint slides around, turns runny and bleeds into its neighbors. Too dry and the paint skins over like a normal palette. You want the towels soaked through with no standing water. Pamela floods them, then tips the tray until only a few drops run off the corner.
If the palette starts to dry during a long session, lift a corner of the paper and pour a little water underneath. Water on top of the paper from rinsing your brush is fine.
Keeping paint overnight and longer
Pamela leaves hers uncovered overnight and the paint survives. To stretch it to several days, cover the tray with plastic wrap or a lid. Swap in fresh towels and paper when the paint area is full or the towels start to smell. Rinse the tray before you set it up again.
Common mistakes
- Using printer paper. It turns to pulp. Use tracing paper or a palette membrane.
- Puddles under the paper. Drain more water off.
- Squeezing out too much. Even on a wet palette, use a little at a time and add more as you go.
Put the palette to work
Softer paint makes blending acrylic paint much easier and gives you time for mixing acrylic colors. If paint is too stiff, see how to thin acrylic paint. At the end of the day, follow how to clean acrylic paint brushes.