Materials Used to Make Fixtures
Modern plumbing fixtures are made from a variety of durable, corrosion-resistant, non-absorbent materials that have smooth, easy-to-clean surfaces.
Manufacturers may produce fixtures from a single material, such as kitchen sinks made of stainless steel, or a combination of materials, such as shower stalls made of fiberglass-reinforced plastic.
The next few slides present some of the materials used to make plumbing fixtures.
Molded vitrified porcelain, also called china or vitreous clay, is used in more expensive fixtures.
Porcelain is also used in its liquid, or enamel, form in combination with other materials, such as steel or cast iron. The resulting material is called porcelain enamel, also referred to as glass lining or vitreous enamel.
Some plumbing fixtures, such as bathtubs and slop sinks, are made from a type of cast iron called gray iron, a metal that is ideally suited for plumbing fixtures because of its ability to be molded into a variety of shapes.
Manufacturers also produce fixtures from sheet steel. Using this low-cost process, manufacturers form the fixtures by stamping the sheet steel into the desired shapes.
Stainless steel is another metal commonly used to make plumbing fixtures, particularly kitchen sinks.
Plastics are often used for plumbing fixtures because of their versatility, light weight, and relatively low cost, although the finish is not as durable as enameled cast iron.