Zinc castings are made primarily from zinc alloys, which are a combination of zinc with other elements. The choice of alloy composition depends on the specific application requirements and desired properties. Common elements added to zinc alloys include aluminum, copper, and magnesium.

Zinc has a relatively low melting point compared to other metals, which makes it highly suitable for casting processes. Its high fluidity allows for intricate designs and thin walls in castings.

Zinc castings exhibit excellent dimensional accuracy and repeatability, making them ideal for applications that require precise and consistent shapes and sizes. Zinc castings often have a smooth and aesthetically pleasing surface finish, reducing the need for additional finishing or polishing processes.