Art Casting of Illinois, Inc. uses ceramic shell investment in our casting process. We believe that this captures the greatest amount of detail and produces the highest quality of castings. It is a layered slurry with a fused silica mechanical binder between each layer. It is very important that the surface dries completely between each layer in order to build a strong, substantial mold to contain the molten bronze . This process takes up to 2 weeks, sometimes more, depending on the size and shape of the individual piece and the weather. We use a chemical indicator to determine the dryness which helps us know when it is time for another layer. We do not allow clients to bring gated wax to us because we cannot guarantee the quality of casting and safety. If you are trying to work on a budget, we can work with you to find a way to reduce your cost in another step of the process.