Temperature
ASSUMPTION: If any changes in the dimensions and/or surface are observed then the temperature affects negatively the material applied for MES construction, by changing its mechanical/physical/chemical properties.
3 pieces of each material were put into the oven/dryer set previously on one of selected temperatures: 30, 50 and 70 °C. The tested material was outlined on a previously prepared paper sheet and a 3d photo of the fresh piece (3d microscope) was taken. The test run for 21 d. The oven/dryer was opened and the materials were inspected every 2 to 3 days. Any changes observed were recorded (pictures with 3d microscope/measurements on previously used paper sheet) and noted in the dedicated table/file.