Plaskolite Inc., Columbus, Ohio, is now offering thermoformable sheet of Eastman Chemical’s new proprietary Tritan copolyester for signage. Tradenamed Mustang, the sheet is said to combine the advantages of traditional copolyester, such as clarity and chemical resistance, but with enhanced heat resistance, toughness, and easy processing. The amorphous sheet has a higher glass-transition temperature (around 108 C) than other copolyesters (around 80 C) and does not require predrying. It also can be formed faster and at lower temperatures than PC sheet. It is also tougher than PC, unlike other copolyesters. It is available in flat sheet and roll stock in thicknesses from 0.100 to 0.250 in. and widths up to 105 in.