The aging granulate is to activate the blowing agent during the manufacturing process to granulate models can re-expand and shape the
model of well-sintered granules, smooth surface and a suitable mechanical strength.
The article presents the results of studies which aim was to determine the optimum time for aging pre-foamed granules for pre-selected
raw materials.
The testing samples were shaped in an autoclave, with constant parameters sintering time and temperature. Samples were made at 30
minute intervals. Models have been subjected to flexural strength and hardness.