Resins For High Temperatures

The use of components in Vespel resin polyamide, a polymer from chemical giant DuPont, has allowed Techneglas Inc. to save thousands of dollers in two of its production plants, where glass parts for cathode ray tubes (CRT) are made. Maintenance work has been reduced, production losses have diminished but product quality has been improved. One of the main problems in producing glass components for CRTs is the need to avoid "thermal checking" or the introduction of stress points and impurities in the hot glass. According to a maintenance specialist at Techneglas, Vespel is the only material that prevent thermal checking in glass components that can reach temperatures of 540 deg C. For more information please e-mail: rivetro@millerfreeman.it