Stay wet palettes for acrylic paint are designed to keep colours on the palette moist all day. They are an excellent solution for preventing your pigments from drying up in hot weather and also provide storage when concluding your day's work. These palettes will save you money by keeping your paint wet and active until the next day. The palettes usually have a permeable membrane paper which keeps the paint fresh and moist and a lid which closes over the paint to stop them skinning over, drying out or cracking. Refill papers can be bought for all of the listed Stay Wet Palettes.