How to Make Cast Aluminum Statues

Get or create the mold for your statue. You must use a material that has a higher melting point than that of aluminum, which is about 1,200 degrees F. Other metals such as steel are suggested, but sand molds are also commonly used when making aluminum castings. Sand molds are often used when an object already exists and you want to replicate it. To create a sand mold, pour sand into a wooden box and make an impression of the object in the sand. Use a blowtorch to dry out and harden the sand.

Light your foundry using its required fuel source, which is usually a propane tank. This is usually done by turning on the propane gas and dropping a lit match into the foundry to ignite the flame.

Wait until the foundry has reached the appropriate melting point temperature of 1,200 degrees F. A thermometer on the outside of the foundry should reveal this to you. Place a piece of aluminum in a crucible and lower it into the foundry flame with metal tongs. Most foundries have a ledge where the crucible can be set in the foundry so you don't have to hold it until the aluminum is fully melted.

Remove the crucible to inspect the aluminum. If it's all melted, pour the aluminum liquid into your mold. Let it sit for at least one full day until cool enough to remove the statue from the mold.