The choice of material for a containment basin depends on the type of chemicals it is intended to contain. Common materials include: - Concrete: Often used for its durability and resistance to a wide range of chemicals. - Steel: Provides strength and is suitable for containing corrosive substances when lined with an appropriate coating. - Polyethylene: Used for its excellent chemical resistance and ease of installation. - Fiberglass-reinforced plastic (FRP): Offers high resistance to chemical attack and is lightweight compared to steel and concrete.