You might not believe how simple mold making can be, until you try it yourself.

Today, we’re making a mold of this beautiful clear glass heart using ComposiMold, our reusable mold making material. Whether you're creating resin jewelry, soap, wax pieces, or even chocolate art, it all starts with a good mold.

And yes, mold making is really is this easy.

Pop your ComposiMold into the microwave or heat it in a double boiler until it’s fully melted and smooth. It becomes a pourable liquid, like warm syrup. Place your heart jewelry in a small container or mold box. Think of the container as a temporary mold shell, anything from a yogurt cup to a silicone baking tray works.

We want both sides of the jewelry piece so I stood it up by using a small piece of a toothpick in the hole where the string goes to make this into a necklace. I could also have done this by making a two part mold, but this is much simpler.

I’m not sure if the heart will float, so I’m going to assume that it will and use the ComposiMold to keep the part down. . For other parts, you can use a dab of hot glue or modeling clay to keep the part from floating, but for this tutorial I pour a little ComposiMold, put this in the freezer to thicken up, and then pour the rest of the ComposiMold to cover the heart.

If I wanted to make a two part mold, I’d make ½ of the mold with ComposiMold, chill this first half in the fridge for about 30 minutes so it's firm and cold before the second pour. Once solid, apply mold release to everything, and pour the second half. This time let the ComposiMold cool but still liquid before pouring to reduce the chance of melting the first side. After it cools, separate the two halves and remove your object.

Slowly pour the ComposiMold over your glass heart. Make sure your piece is fully covered with around a 1/4 inch or more of ComposiMold above the top.

One of the great things about ComposiMold is that it’s transparent, so you can actually see your object inside the mold as you work. That makes it easier to check for bubbles or positioning before it sets. Plus, it's reusable, just melt it down and use it again for your next project. It's perfect for testing ideas, experimenting, and getting more out of your mold making without wasting materials. Like I do here, you get fewer bubbles if you let the composimold cool before pouring. We do also have Bubble Buster to help with bubble reduction if needed.

Let the ComposiMold sit and cool, about 30 minutes to an hour in the freezer and more time for larger sizes. It’ll go from warm and flexible to solid and rubbery. Once it’s firm, peel the mold away from the container. Then, remove your glass heart from the mold.

I needed to cut a little bit to get the heart out. What you’re left with is a flexible, detailed negative of your jewelry piece ready for casting.

You can cast a wide variety of materials in ComposiMold. It works great with resin, waxes like beeswax or soy wax, soaps, chocolate, plaster (we have a plaster additive to make stronger, harder plasters), and even some low-heat clays like epoxy clay or polymer clays. Just make sure your casting material stays below 160°F. For higher temperatures, chill your ComposiMold before pouring in the hotter casting materials. If necessary use a little vegetable oil or other mold release and you’ll get clean, detailed results and can reuse the mold again and again!

For this heart to make it look like the original heart, I used Clear Epoxy Resin. Mix and pour into the mold opening. If you want to add colorants, we have epoxycolors.com available from us. Let this resin cure to solidify. This is where I get impatient and want to pull it out of the mold before it’s hardened. For this resin, I let it sit overnight.

As I pour this, this is a great time to mention, ComposiMold also makes ImPRESSive Putty for quick molds, push molds, and clay molds, Plus Bubble Buster to help reduce surface bubbles, colorants to make different color epoxy castings, and plaster additives for improved strength in plaster.

Now it’s ready to pull out of the mold. Looks nice. And when you're done? Re-melt the ComposiMold and make your next mold. Reuse it over and over!

So… Is Mold Making This Easy? With ComposiMold—it really is.

We have free ebooks and tutorials available on our learn mold making page of our website plus a zillion other videos at ComposiMold. Let me know what questions you have and and happy mold making!