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How to Use Jesmonite: Easy Tray Making in 40 Minutes

jesmonite tray mold
My first tray with jesmonite. Happy with it!

Do you love crafts? Do you like satisfying crafts? Then you must try jesmonite.

I love jesmonite much more than epoxy, and I truly believe jesmonite is much more beginner friendly. Let me show you how to use jesmonite in an easy way and we will make a colorful jesmonite tray in just 40 minutes.

If you need to learn more about what exactly is Jesmonite and where to buy it, please refer to my article: Ultimate Jesmonite Starter Kit & 8 Jesmonite Alternatives USA.

This article contains affiliate links. It means no extra cost for you but a little commission for me to support my hobby and blog. Thank you!

Jesmonite is sadly hard to get sometimes but it is such an amazing material for making plant pots, boxes, trays and decorations!

It is a very easy and quick way to add some colour to your home.

how to make jesmonite tray


  • Jesmonite or an alternative (this eco resin is available in the US)
  • Jesmonite Pigments (colors you want to use). For my tray, I’m using pink and purple powder pigments.
  • Mold, I’m using this tray mold.
  • Cups and stirring sticks
  • Digital scale
  • Wax
  • Tweezers or toothpick
  • Sandpaper

Instructions to Make a Jesmonite Tray

How to Use Jesmonite
  • If you are using original Jesmonite your ratio will be 2.5 parts of powder base to 1 part of liquid base. If you will use plaster, eco resin, or any other alternative follow the guidelines on the package.
  • for a regular tray, you will need approximately 250 gr of powder base and roughly 100 ml of liquid base.
  • 20gr of the pigment per 1 kg of jesmonite/mixture. Follow this ratio for bold colors, for more pastel tones I used less pigment.
  • Mix very well. It looks all good on top, but at the bottom of the cup, there will be still unmixed powder, trust me.
  • Have a toothpick to make sure there are no bubbles in the mix
  • Remember the visible top for you when you poured the tray will be the bottom of the tray.
  • You can always make your own moulds using casting materials and silicone.

Step 1 – Mixing the colors

Make sure your mold is clean, the work surface is covered and clean. If yes, you are ready to create!

How to Use Jesmonite

Shake the liquid part, and pour the liquid base into one cup and weigh it. Add pigment to the liquid and mix. Weight the 2,5 times powder base in a separate cup.

Pour the liquid into the dry part.

I’m using the two colors so I first had 50 gr of the liquid part prepared for the purple color, and the other 50 gr in a separate cup for the pink color. I measured in two other separate cups 125 gr of powder base in each.

How to Use Jesmonite

I actually added pigment to the dry part and then poured liquid and it mixed well. But the brand calls for adding pigment in the liquid part.

You can mix it with a wooden stick, I used my square-shaped palette knife. Make sure there are no lumps:

How to Use Jesmonite
How to Use Jesmonite

Step 2 – Pour the colors

This is your total freedom!

You can pour the jesmonite mix and swirl, you can make circle motions while pouring from both colors at the same time, you can use many colors, you can pour one solid – anything you want!

As I had two colors, I just wanted them to meet half ways, so I just places my two cups at the opposite edges and poured.

But I want to show you that you can also do swirls, so I did some at the back of my tray, it can look like this:

How to Use Jesmonite
Freshly poured jesmonite tray

Don’t forget their bubbles

As you can see there are some lumps and air bubbles, I will remove them all with a toothpick. Some lumps I will sand when the tray is dry.

Do it quickly before the jesmonite sets.

Step 3 – Demold

Jesmonite is so quick setting! One more thing I love about it. Within 30-40 minutes the tray was ready to get out of the mold:

How to Use Jesmonite

You should remove the tray from the mold and let it cure fully. I leave it overnight. This was my first go and you can see I still left out some bubbles:

How to Use Jesmonite

But I love the colors and how the tray turned out!

Keep the leftover Jesmonite mix

By the way, have you seen amazing terrazzo trays made with jesmonite?

You can do one as well.

Simply keep the leftover colors to dry and then break them into small pieces! Next time you can mix them in and you will get some nice results.

How to Use Jesmonite terrazzo

Step 4 – Sealing

For jesmonite, we use regular beeswax as a sealant. Just rub it into the dried tray and it is done!

jesmonite tray mold

Your beautiful tray is done! I will be happy to see yours, please send them by email or tag me on Instagram if you post your jesmonite creations.


Can I use acrylic resin instead of jesmonite?

Plaster and eco resins are close alternatives to jesmonite as they are both powdery and have the same characteristics. They are also easier to manage than resin. Acrylic resin is not the same as the epoxy resin we are using for casting jewelry or making tables. So I would not use acrylic resin instead of jesmonite if you want to get the same results.

Compare these two trays:

Epoxy tray
Jesmonite tray

They have a very different look, feel, and making process. I believe jesmonite (or its alternatives) to be easier for beginners and faster, and more forgiving, than epoxy resin.

But of course, you can explore your creative side and try everything (like I do!). It brings me so much joy and I hope you learned how to use jesmonite in a very easy way today with me!

Happy crafting! Follow my blog for more tutorials and ideas.

How much jesmonite do I need for a tray?

For the regular oval tray, you will need approximately 250 gr of Jesmonite powder base and roughly 100 ml of liquid base. This is how much I used to make my tray.

Can you paint on jesmonite?

Jesmonite brand recommends using special  mineral based paints on Jesmonite, but crafters have already proven that you can use regular acrylic paint and pigments to both mix with Jesmonite and paint on it.

How to mix Jesmonite?

Orgiginal Jesmonite comes in 2 parts: powder base and liquid base. To properly mix Jesmonite follow the ratio 2.5 parts of powder base to 1 part of liquid base. For ex., 250 gr of Jesmonite to roughly 100 ml of liquid.

Can you use acrylic paint in Jesmonite?

Acrylic paint is safe to use in Jesmonite and to paint over it. The color may dry to a lighter shade.

What is Jesmonite used for?

Jesmonite is a very versatile compound. It reminds plaster or joint compound and is mostly used for texture, sculpture, casting. Crafters use jesmonite to make pots, trays, coasters, and many other items.