Q&A for How to Make a Silicone Mold

Return to Full Article

Search
Add New Question
  • Question
    Can the silicone-and-cornstarch mold withstand hot temperatures, such as liquid wax?
    T. Chinsen
    Top Answerer
    Hot wax melts at 37° C (99° F). Silicon can withstand temperatures up to 260° C (500° F), There is enough temperature range for melted wax to be put in a silicon mold without damaging the mold.
  • Question
    Can I use plaster of Paris in a mould?
    Cafra
    Community Answer
    Yes, you can use almost any "plaster" in the mold as long as the substance or putty is long and wide enough for your needs.
  • Question
    Can I bake liquid poly clay in a homemade silicone mold?
    Alcyone Rainbow
    Community Answer
    Yes. Polymer clay and liquid clay are baked at around 265 degrees Fahrenheit, which does not damage silicone.
  • Question
    Can you use silicone in the mold after you make it?
    kait
    Community Answer
    Yes. Once a silicone mold is fully cured, it will accept any material in the casting process.
  • Question
    Can the last method be used to make molds for 3D items? I know I would need to "cut" the mold into two parts for 3D items. What is the best way to do that?
    Alex Lukacsffi
    Community Answer
    The last method can be used for 3D items. Silicone is best cut through with precision using a craft knife, although any knife would work.
  • Question
    Can I mold silicone in a silicone mold?
    Ahorn3994
    Community Answer
    Yes, you can! Be sure to add a catalyst or hardener to the silicone you are molding so it doesn't bond to the silicone mold.
  • Question
    Can I use silicone to produce a cake dummy?
    ScottB28
    Community Answer
    Yes, you can make a silicone mold for baking a cake dummy. Ensure the silicone product you purchase is labeled "FOOD SAFE." Follow the instructions in Method #3 and those included with your 2-part silicone mold kit.
  • Question
    Can I use a heat gun to remove bubbles from resin when using construction silicone?
    ScottB28
    Community Answer
    The best way to remove bubbles from silicone is by using a vacuum chamber. Another effective method is vibration. If you have an electric drill or similar rotary tool, you can press the drill chuck against the side of your mold while it's spinning. The ridges will create vibrations, helping the air to rise to the surface.
  • Question
    Can I use a wooden object to make a mold with silicone?
    ScottB28
    Community Answer
    Yes, but you need to make the wooden object smooth and non-porous first. If it is painted or covered with polyurethane, it will be easier to remove from the mold. Apply a thin coating of petroleum jelly to ensure the silicone does not adhere to it.
  • Question
    What is the best mold to use for plastic? Can I use a silicone mold?
    Alice
    Community Answer
    Silicone molds are a good option as they are easy to use, eco-friendly, and reusable.
  • Question
    Can I use this method to make a two-part mold, like for the front and back of a doll's head?
    Alice
    Community Answer
    You can use two molds as a pair, combining them to achieve your desired result. Some body molds are designed with two parts that, when combined and then demolded, are ready to use.
  • Question
    Can I use hot glue in a silicone mold?
    Alice
    Community Answer
    It is not recommended to use hot glue in a silicone mold. Hot glue may melt the silicone or cause the mold to degrade over time. Additionally, the heat from the glue may warp or deform the material being molded. It's best to use adhesives specifically designed for silicone molds, like low-tack tape or silicone-based adhesive.
  • Question
    Is a silicone mold safe for baking food?
    Alice
    Community Answer
    Silicone molds are generally safe for baking food as long as they are made from food-grade silicone. Food-grade silicone is free from harmful chemicals and approved by regulatory agencies for use with food. Ensure the mold is labeled for food use.
Ask a Question

      Return to Full Article