Make Your Own Cast Mold, Re-Usable

Two Ingredient Casting Mold

  • Silicone
  • Maizena or cornstarch

The Other Stuff

  • Whatever you want to mold. I used my shapely pear 😉
  • Plastic knife for mixing
  • Mixing container
  • Caulking gun
  • Sharp knife
  • Super Glue
  • Gloves
Check out how to make your own molds using two basic ingredients you probably have at home already. #mold #mould #concrete #DIY
https://acraftymix.com/blog/two-ingredient-mold/

Prepping the Form for Molding

Wash and dry the pear, or whatever you decide to cast. Since I’ll be filling the mold with concrete once it’s dry, I stuck a pen lid into the bottom of the pear. It helps keep the pear upright while the mold sets and will leave a hole that’s the right size for pouring in the concrete mix later.

Check out how to make your own molds using two basic ingredients you probably have at home already. #mold #mould #concrete #DIY

See what I mean about the cute pear butt 😉 I stuck the pen lid into a bit of polystyrene before mixing up the mold. It’s a trick I learned when painting polystyrene balls 😉

Mixing the Two Ingredient Mold

Put your gloves on and throw some cornstarch into a container. Cut the tip off of the silicone tube and put it inside the caulking gun. Squeeze some silicone into the cornstarch. Roughly the same amount. Then add some more cornstarch on top of the silicone and stir using the plastic knife. It’s probably best to do this outside. Silicone has an incredibly strong vinegary smell. When it looks like it’s almost mixed, start kneading the mixture until it forms a stiff paste that resembles bread dough.

Check out how to make your own molds using two basic ingredients you probably have at home already. #mold #mould #concrete #DIY

If the mixture is too tacky or sticky, add some more cornstarch. If it’s too dry and flaky, like in the piccy above, add more silicone. Once it’s ready, flatten it out a bit and wrap it around the shape you want to cast. About 7 to 10 mm thick is perfect. That’s about 1/4” to 3/8”. Make sure you squish it into all the nooks and crannies.

Check out how to make your own molds using two basic ingredients you probably have at home already. #mold #mould #concrete #DIY

Sit back and wait for it to dry, probably about ½ hour depending on the silicone you used. Use a sharp knife to cut the mold and remove your form. The two ingredient mold is very pliable so you can just peel it off. If you’re molding a pear, please don’t eat it. Rather wash it off again and add it to the compost heap.

Check out how to make your own molds using two basic ingredients you probably have at home already. #mold #mould #concrete #DIY

Use super glue and carefully glue the two halves back together again, and it’s ready for casting.

Check out how to make your own molds using two basic ingredients you probably have at home already. #mold #mould #concrete #DIY

Casting the two ingredient mold

You can either use concrete or plaster of Paris. I didn’t have to add any kind of release agent, I simply mixed up some concrete and poured it inside the mold. Just make sure you shake it around a little to get rid of any air bubbles. Once the concrete sets, carefully cut along the seam lines and remove your form.

Check out how to make your own molds using two basic ingredients you probably have at home already. #mold #mould #concrete #DIY

The two ingredient mold can be reused over and over again, just wash it off, and you’re good to go.

How to make your own molds using two basic ingredients you probably have at home already. It's reusable and really easy to make #mold #mould #concrete #DIY #acraftymix #2ingredient #concretemold

To finish the pear off, I used some copper paint to create that 5-star restaurant look and added a bent, rusty nail as a stalk. The leaf was cut from a piece of metal that’s been lying outside in the rain for a few months.

See out how to make your own molds using two basic ingredients you probably have at home already. #mold #mould #concrete #DIY

A little bit of rust always works for me.

Ever wanted to make your own silicone molds? All you need is two ingredients and you probably have them at home already. #mold #mould #concrete #DIY

The easy two ingredient mold works really well and can be reused over and over again. And I do so love that combination of concrete, copper, and rust.

Ever wanted to make your own silicone molds? All you need is two ingredients and you probably have them at home already. #mold #mould #concrete #DIY

Just a word of warning. Once you make your first mold, everything looks moldable 😀 We’ve turned an old broken doll into a garden ornament and even created our own Egyptian cartouche using the two-ingredient mold.

And if you like the idea, don’t forget to save it to Pinterest so that you can find it again!
How to make your own molds using two basic ingredients you probably have at home already. It's reusable and really easy to make #mold #mould #concrete #DIY #acraftymix #2ingredient #concretemold

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