According to the invention, the inventive sealed contact bushings for plastic
components consist of a glass/plastic compound based on a thermoplastic, which
contains a low-melting sulphophosphate glass with the following composition: 4
to 10% Li2O, 40 to 10% Na2O 4 to 8% K2O, 1 to
2 % CaO, 35 to 37% ZnO, 0 to 3% La2O3, 19 to 22% P2O5
and 19 to 22% SO3, in addition to a high-performance thermoplastic.
