The mechanical performance of lightweight glass packages produced by the NNPB process was evaluated by comparison with the same glass packages produced by the conventional process. The temper number (annealing process evaluation), thickness distribution behaviour and mechanical performance (impact, vertical load and thermal shock strength) were analysed before and after line simulation, applied in optimised conditions in the laboratory. The performance of lightweight glass packages under transport simulation in relation to the regular weight bottles was also evaluated. Both bottles presented residual stress values within the specified limits. The lightweight glass bottles had a more homogenous thickness distribution in comparison with the regular weight bottles and a better performance in relation to the impact strength, especially in the heel.
