Cast iron sinks are formed by pouring molten iron into a cast (hence the name "cast iron") that forms the sink's shape. They are then coated with an enamel finish. This enamel finish can come in a variety of colors and it can also be fire polished to give the sink a glossy look.
- Comes in many colors.
- Remains quiet when water hits the sink's surface.
- More likely to chip and stain than other options.
- Because the material is heavy, the surrounding counter must be able to support a large amount of weight.