The rocketry team at the Universidad de Concepción is currently working with the molding of the propellant grains, a fundamental stage in the production of the rocket fuel. This is an important step in the study of the properties of the fuel to be used. The molding is performed when the propellant is still liquid, in special steel cylindrical molds.

 This starts by first preparing an inhibitor layer which will separate the combustion chamber from the propellant, thus avoiding that the heat being produced goes to the rocket engine.

 Next, both parts are joined in the cylindrical mold so to fix them together in their final form, ready to be studied (below).