Epoxy molds DIY with silicone (best way)

Silicone molds come in all kinds of shapes, sizes and designs, but sometimes you can’t find the perfect mold for your epoxy resin project or you just want to copy the shape of an object you already have.

That is why in this article I will explain step by step how to do resin mold in an easy way.

Making your epoxy molds DIY you can create a mold of everything you can imagine!

Epoxy molds DIY best way to make them

Epoxy resin is a material that allows you to create all kinds of things, from large projects like tables to small pieces of jewelry, since once it dries it becomes a solid, hard and resistant material.

The best type of mold to use when working with epoxy resin are silicone ones, because it is considered a non-toxic material, it does not adhere to the resin and, being made of a flexible material, it allows us to easily unmold the piece.

Although there are a large number of silicone molds available in different shapes and sizes on the market, you may not find exactly the one you need or the one you imagine for your project. Here you will learn how to make silicone molds with your own hands.

epoxy molds diy

Tutorial to make a silicone mold

Making a silicone mold is a very easy activity that requires the use of few materials and tools. I’m sure you thought that epoxy molds diy were not so easy to make!

In this tutorial you will learn to create an exact duplicate mold of another object.

Materials & Tools

  • Silicone
  • Cornstarch
  • Disposable Bowl
  • Measuring cup
  • Disposable Gloves
  • Wood table
  • Object to duplicate
silicone molds


  • Step 1

    Put silicone in the disposable bowl, you can reuse some empty container of food products.

  • Step 2

    Add double the cornstarch. Keep the container handy as you may need to add more cornstarch to the mix.

    If you want to add color to your mold, this is the time to add a few drops of acrylic paint.

  • Step 3

    Put on your gloves and knead the mixture that has formed into a putty.

    If it is dry and brittle keep kneading, but if it is sticky add more cornstarch.

  • Step 4

    In your hands, start by rolling the putty to form a ball.

    Next, place the putty on a wooden surface and gently press down to flatten it slightly.

  • Step 5

    Press the object you want to mold into the putty. Be sure to press the edges of the mold with the object to avoid any shapeless gaps.

  • Step 6

    Wait approximately 20 minutes for the silicone mold to cure. The mold should be flexible, but it doesn’t have to be able to mold.

    Once this happens, unmold the object.

  • Step 7

    To use the silicone mold with epoxy resin, you will need to pour resin into it, let it cure, and then unmold.

You can also use these epoxy molds to make beautiful soap forms, here is a tutorial about ‘What is soap made of?’ with Info, tips and a recipe 😉

Have fun making epoxy molds DIY so you can keep creating works of art without limits!