The aim of this Master’s thesis is to investigate how the mechanical properties of elastomers change depending on the position of the specimen inside the die and on the position of the tube inside the oven. Indeed, to produce the elastomers, the elastomeric compound is vulcanised in the die and post-cured in the oven. As the temperature inside the oven is not homogeneous, the mechanical properties, such as hardness, tensile stress and strain at break and tear strength at break, can be affected by the position of the elastomer inside the oven. To measure the mechanical properties of the elastomers, different tests are carried out in laboratory following the corresponding norms: hardness Shore test, tensile test and tear test.