UTCorq synthetic closures are made from a food-grade, high-quality thermoplastic elastomer which provides a TCA(2,4,6-trichloroanisole)free seal. The closures are produced under ISO,BRC(British Retail Consortium),and AIB(American Institute of Baking)processes using the highest quality precision injection molds and presses. To learn more about each type of UTCorq closure, click on the product above.