Articles and Tutorials about concrete Molds

Questions and Answers About Concrete Crafts Molds

Silicone is the best material for making your own custom mold for small to mid-sized pieces.

Here is a project where I used silicone to make a concrete mold.

Concrete doesn’t stick to plastic or silicone. It also doesn’t stick easily to rubber.

Latex rubber can be used as a concrete mold, but it won’t be as durable as silicone, so you get as many copies of castings from it before you start to see wear.

In this tutorial, I made a rubber mold for a mini concrete planter from a cowboy boot planter figure.

To construct your own forms for concrete, you can use wood materials like melamine or plywood.

Alternatively, I like to use rigid foam insulation board and for smaller pieces, corrugated plastic.

Here’s a project where I used the corrugated plastic for a triangle shaped planter.

And in this project I used foam insulation board for a large planter.

Platinum cured silicone is the best material to use to make concrete molds.

Most concrete crafts are smaller sized pieces so you will need a mix that is smooth and has good fluidity without needing a lot of water added to it.

I have an article in which I discuss six different concrete crafts mixes, including which is my favorite.

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Tutorials for custom making your own silicone or rubber molds for casting concrete, as well as constructing your own concrete forms.