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Bisphenol A (BPA) is a chemical that approximately 90% of all BPA is used as an intermediate in the production of epoxy resins and polycarbonate plastics. Epoxy resins are used as food-contact surface coatings for cans, metal jar lids, coatings and finishes, automobile parts, adhesives, aerospace applications, and as a coating for polyvinyl chloride (PVC) water pipe walls. Polycarbonate plastics are hard plastics used to make numerous products, such as eyeglass lenses, water bottles, and consumer electronics. Some, but not all, dental sealants contain BPA. Additionally, BPA is a component of some specialty applications, such as flame-retardants, and as an antioxidant and stabilizer in the production of PVC and other plastics.