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Kara S.
Kara S.
  • Hometalker
  • Jersey City, NJ

How to Make a Mason Jar Mold

4 Materials
3 Hours

Ever wish you had a way to make a mold of your favorite things? Say... a mason jar? I've combined 3 ingredient to make these one of a kind mold you can use for anything! Here's how to make them:
Please note - do NOT use this DIY to make molds used for food or items you will ingest.
how to make a mason jar mold
First, combine water and dish soap. I used a 1:10 ratio, favoring dish soap.
how to make a mason jar mold
Next, squeeze a tube of 100% silicone caulk into the bowl. I had to get every ounce of this out of the tube to be able to have enough for my mold.
how to make a mason jar mold
Then mix together the silicone until it becomes less sticky. This took about 5 minutes. Be sure to wear a glove as this is NOT chemical free. If you choose to not use a glove, you may experience a chemical reaction on your skin.
how to make a mason jar mold
Once your silicone is less sticky, grab a smaller container (that you are willing to part with) and transfer the silicone over. Be sure to get most of the water off before transferring it.
how to make a mason jar mold
Grab your positive (the object you'd like to make your mold out of) and place it into the silicone, pushing down to get it stuck. Let this dry in a safe spot for a few hours until totally dry and solid.
how to make a mason jar mold
When the mold is hardened, pull the positive from the mold. It may be suctioned so be careful not to pull to hard. Now, you're ready to start using it!
how to make a mason jar mold
First. I decided to make wax melts. You can find a tutorial here on how to make them:
how to make a mason jar mold
They came out so cute and such a good gift!
how to make a mason jar mold
I also made cute hand soaps!
how to make a mason jar mold
And an amazing tie-dye crayon! The possibilities are seriously endless. Once the mold is made, you can use it over and over again. Not to mention, these are PERFECT for stocking stuffers.
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Have a question about this project?

3 of 14 questions
  • Darlene Stillar
    on Dec 20, 2017

    what is the point of the pink thing or whatever it is on top of a candle

  • Suzanne Tipton
    on Dec 20, 2017

    If you want to make it look like a whole JAR. What type of glue would you use to hold the 2 pieces together?

    • Roxie Falkner
      on Apr 23, 2018

      You do it vertically 🙄 but put the lid on the jar, and insert it upside-down in the silicon.

      ONLY making the mold cover TO the bottom of the jar, NOT covering the curve of the bottom. Doing this; you should be able to cut one 1 slit in the side of the mold, starting at a he top (bottom of jar) and going down the side (only as far as it takes to remove the jar!)

      That means cut only a little slit, 'keep attempting to remove it'...cut a little further...etc.

      One you're able to remove the jar, u have a 3D mold; that can be held together w/rubberband. Whatever you make with the mold, may have a very slight seem line where the slit was, you should be able to smooth it out depending on the product you poured.

  • Courtney Roser
    on Jan 6, 2018

    Could I use this silicone mold to make a resin casting?

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