Forgive yourself if you can’t pronounce “polybenzimidizole,” much less know what it’s used for. But if you ever went to the moon, you were sure glad to have it on your skin.
Familiarly, polybenzimidizole goes by the much more vocally friendly name of PBI. It’s a twill-like material made by, fittingly, PBI Performance Products in Rock Hill. The company makes polymers, solutions, and films for industrial purposes, but the Rock Hill plant is the only place in the world that manufactures the company’s most visible product, PBI staple fiber.