Acid anhydrides are chemical compounds used to manufacture automotive coatings and plastics. They react with water to form acids. In the automotive industry, they are primarily used to cure epoxy resins and paint finishes. These chemicals create a hard, chemical-resistant shell that protects car bodies from rust and road debris.
They are also used to make polyester fibers for seat upholstery and carpet. These synthetic fibers are tough, fade-resistant, and easy to clean. They withstand years of friction from passengers climbing in and out of the cabin, keeping the interior looking new.
Handling raw acid anhydrides requires safety gear. They can irritate the skin, eyes, and lungs. Professional paint booths use ventilation systems and respirators to protect painters from inhaling these chemical compounds during application.