MastersonArtist Palette Seal, 12in x 16in Airtight Palette Container, Keeps Wet Paint Fresh for Weeks, Oil or Acrylic Painting Palette with Lid, Seal, Blue Lid Box, Made in USA

Excellent Product. Keeps Paint fresh for days. I recommend this product

I have worn out two of these. I love them. Keeps oil paint moist for days

This works perfectly for my glass palette which measures precisely 16” x 20”. It actually has just a little wiggle room from side to side, so the inner dimensions are a tad bigger than advertised. I made a little pull that I can lift it up with by using a little electrical tape stuck on the back.The lid is very airtight. I store it in the fridge and my paint blobs and smears stay soft and useable for at least a couple days (longest I’ve gone so far).Lid is very easy to put on and take off, as long as you follow the included directions. Ironically, the instructions are held captive inside the box……so how does one easily open it?? Pop up the four corners first, then the sides will easily release. I don’t know about you, but I usually tend to release one corner then try to pull it off, and it usually works, but not so well with this box. Uss the four-corners-first method for this one!Also just so you know it says not to store it in the freezer because it can become brittle and lead to cracking. I store it in the fridge and it works well.Thanks for reading my review…I hope it helps you

I was surprised at how long it was able to keep my paints fresh. Highly recomended

It's important to remember this is a "Palette SEAL," although it can be used as a palette. Here's why I ordered this, and how I use it:During an oil painting workshop a few weeks ago, the instructor used a piece of glass duct-taped (on the edges) over a same-sized piece of luan board that was painted neutral gray. At the end of class each day, he simply put the glass inside this palette and sealed it. You can use a paint scraper (w razor blade insert) to scrape off any paint that dries on the glass and a good scraper doesn't damage your glass palette. So, I can have a sizable, fairly easy to clean glass palette with a neutral gray background. Oil paints won't stay fresh "forever," but they will stay good for several days. My palette is about a quarter inch smaller all around than this SEAL to make it easier to remove the glass. If you cut the glass the exact same size, it would be pretty impossible to get it out of the palette without tipping the whole thing over.Even if you're using acrylics, using a glass palette makes sense because you never have to worry about staining the white surface of this palette SEAL. Just put a damp sponge in with your glass palette, to keep the acrylics moist. You can also just put a paper palette in the seal but the bottom surface isn't conducive to just one sheet of palette paper. You can put the entire pad in the SEAL and remove the top sheet when you're finished with it.Obviously this won't work for people who need to hold the palette, but for those of us who paint while seated, or with our palette within easy reach on a table, the "glass over neutral gray board," works wonderfully.BTW the instructor had one palette with duct tape (gray side out) covering the luan board, instead of paint! Is that easy, or what?I haven't tried putting the entire palette in the freezer overnight, because the seal works well enough for me. I'm concerned the plastic will become brittle if frozen, plus I just don't have enough freezer space at this time of year.

Love this watercolor palette! I use it to keep my oil paintings that are small while traveling back and forth from my painting class. While in class, I use it to put down palette paper or wax paper to put my oil paint and Liquin on.The cover does keep my oil paint dry if I have any left.

Ridiculously difficult to manage, so much so that it is practically unusable. Putting the cover back on so that the container is airtight is nigh impossible. I was hoping for something I could use to keep my oil paints usable, and away from my pets, when I am not painting, but this just doesn't work. I'm going back to storing my glass palette in a wide tupperware container.

It's a great concept, but like many others...I found it a pain to try and seal. I did the marking of the corner thing, and it is still a struggle. Tupperware is not a new concept, so why can't we have a lid that just snaps on? Vaseline the grooves? It feels like we have to do a lot to make the product work, when it should have just been better designed and produced. It works if and when you can get it to seal completely.