Dipping Waxes Part 2

Part 2! Now the actual dipping begins. The screws have been attached and each piece has had the surface coated for protection.

The first layer of silica is applied in liquid form. The particles should be suspended so it is important to mix this well and stir it often.  It's important to dip the piece in slowly and to make sure no bubbles form on the surface of it. Any bubbles that form in the first few dips allow the molten bronze to bubble out into the space and only provide more trouble later in the work.

Depending on the size of the piece a different amount and kind of dipping is recommended. My professor suggested that I dip mine twice in the fine silica and three times in the coarse because of their small size.

Each dip needs to dry completely before the next can be applied, and the process can take several days. It is easy to tell when it's ready to be dipped again because the coating goes from a green to yellow. Below can be seen  first dip, the wax is still visible underneath the initial layer.

Below is an example of what the finished dipping should look like. The waxes are completely hidden and the forms are muffled.

Next update should have more on the process with melting out the waxes.