What materials are Duralex products made of? 26 October 2021 14:50 Updated Duralex products are glass products. They are therefore composed of a mixture of sand, soda ash and limestone. Related articles Are Duralex lids guaranteed BPA and phthalate free? I am a professional, who should I contact to obtain a supply of Duralex products? Do Duralex products comply with European and global standards? I encountered a problem while using the products, what should I do? I am opening a cafe / restaurant, do you have a distributor / reseller?