A process for producing surface-sealed hollow glass containers, wherein as
part of the production process the hollow glass containers are coated with
a water-based cold end coating composition in the region of the exit from
the annealing lehr, which is arranged following a machine for producing
hollow glass containers, where the cold end coating composition comprises
the following components: I. a water-based organopolysiloxane-containing
composition prepared from alkoxysilanes which carry a functional group and
alkoxysilanes which are selected from trialkoxysilanes, dialkoxysilanes
and tetraalkoxysilanes, and II. a silicon-free component selected from a
wax, a partial fatty acid ester, a fatty acid and/or a surfactant. The
hollow glass containers produced in this way feature an enhanced long-term
service strength.