Plaster Molds for Clay

When making plaster molds for clay, both clay and plaster are important elements. If these two elements are not taken care of, your project will just go to waste. Let us learn the important things to remember in taking care of plaster molds for clay. Along the way, we will also learn more about both clay and plaster, and how they complement each other – the plaster being used as mold and the clay that will take the plaster’s form.

You might be one of those who use commercially-prepared clay plaster for sale. If this is the case, watch out for molds, which can indicate that the clay is already old. You should also inspect the clay’s color. Ideally, an entire batch of clay should have the same color. The texture is another aspect. Make sure the clay is smooth to the touch. You don’t want to buy a flaky type of clay. Lastly, the clay should not be too soft or too tough.

If you have too much clay, the excess might only go to waste. Know what your project is to get just the right amount.

Draw estimates so that you don’t overbuy or knead more than you need. Measure the clay before purchasing. Remember, once you knead that clay, it can never go back to its original form.

Get to know the clay body. The moment you know it, you will also know its essentials. You will know the limits of the heat intensity and the length of time that you need for the clay to harden.

When you use plaster molds for clay, you want to make sure that your clay is well done. Otherwise, your project might end up broken. Although you could always glue together the broken pieces of both the plaster and clay, it would take up so much time and effort. So, make sure that you don’t mess up by using the right amount of heat and fire.

Check the right kind of clay you want to use. Clays have different shrinking rates, but most of them shrink up to 10%. Before pouring the clay slip into the plaster mold, put a piece of cheesecloth between the plaster and the clay for easy removal.

It’s important that the plaster mold is at least one inch thick. If it’s thinner than that, then it would definitely break. Instead of saving some of your plaster, you end up ruining it because it would be impossible to be reusable.

If it’s your first time to make clay potter using a plaster mold, don’t be afraid to make mistakes. Take note of and learn from your mistakes, and don’t be ashamed to share your experience with others. Your experiences won’t just help you, but it will also help others. You’ll never know, you might be the next best plaster molds for clay maker.