What Is My Bathtub Made Of? How to Identify Porcelain, Fiberglass, and Acrylic in Los Angeles County
A practical 2026 guide for recognizing common bathtub materials before repair or refinishing The quickest way to identify a bathtub is to combine several clues: a magnet test, the tub’s sound and temperature, the amount of flex, its shape, and any exposed edge or chip. Porcelain enamel usually covers cast iron or steel, fiberglass commonly…

















