I recently purchased some liquid latex online to repair an old mold that developed a few holes in it over time. I then decided to try and make a latex mold of my own. I had an old cat ornament lying around, so I figured that would be a good ornament to start with, as it does not have a lot of detail and is very small. It only cost me around $15 in latex to make a mold this size.
In this guide, I'll show you how to make a mold of your own for concrete or plaster garden ornaments.
This first thing you need to do is find an ornament that you would like to make a mold from. I used a small cat ornament which had very little detail. I recommend using an ornament with very little detail for your first attempt.
You then need to find a piece of flat plastic or glass to place your ornament on, as this will be your base. You also want to give both the ornament and the piece of plastic a good clean before we move onto the next step.
Now that you have given your statue a good clean, you want to place your ornament onto the piece of plastic or glass that you are going to use. Once you have done this, you need to get your silicone spray and cover the statue and the piece of plastic with this.
You should be able to pick up some silicone spray at your local hardware store. The silicone spray is very cheap, and it lasts a very long time. I also use it when I make my statues, as it helps with releasing the molds from the statues.
The next step is to start applying coats of latex to your mold. To do this, you will need liquid latex and a brush. In total, I used around one liter of latex to make a mold this size.
You want to coat both the ornament and about two inches or more of the plastic base. You need to wait for the latex to dry, however, before you can apply another coat of latex. You can touch it with your hand to see if it is dry or not before adding another layer.
It was wintertime when I made my mold, so I had to wait roughly three hours in between coats. I added about 30–40 coats in total to my ornament.
Once you have put on enough coats of latex, you will need to let the latex dry out for at least 48 hours. Once you have done this, you can peel your latex mold away from your ornament. Mine was fairly easy to take off, but you may need to apply a little bit of force to remove your mold.
For a mold this small, you shouldn't need a fiberglass backing. You can just place it in a container with sand surrounding the outside area of the mold, and this will provide enough support. With larger molds, however, you might need to make a backing to support the latex.
Note: My video below shows you how to do the entire process step-by-step.