Copolyester resin is designed for heavy-duty applications. Copolyester (PETG) is typically 15–20 times tougher than general purpose acrylic. PETG is made to withstand handling and reduce losses due to breakage. PETG resists a variety of chemicals and commonly used cleaning agents. It is tough and durable (not brittle), providing years of trouble-free functionality and long life. Clear optical characteristics mean the viewer can see the content, read text, and see true colors through the material. It complies with FDA regulations for food contact.