a us retailer replaced the expensive but unbreakable petg of its doublewalled tumblers by a more economic transparent smma resin cet® styrene acrylic copolymers materials. cet® is a range of styrene acrylic copolymers. it is a costcompetitive transparent resin with gorgeous and glossy surface display. its advantages are the costattractiveness and processing convenience of styrenics enhanced with the high aesthetic quality of acrylics. these materials have an excellent clarity and aesthetic, competing with polycarbonate, polyester and mabs, with almost no visual difference. in addition, cet® resins are less expensive than these benchmark materials. in terms of mechanical properties, they are lower, however impact modified grades are available, boosting mechanical performance while keeping very good aesthetics.
