Description
Traditionally investment was mixed with water in open air and with this process the final blend result was not really homogeneous and precise so the surface of the precious metal casted was not so smooth and complete.
More, the large quantity of gases incorporated in the mixing was giving such a huge percentage of porosity.
St.Louis mixer, with the vacuum total process and the timing, quantity and water dosing very precise, assures the best quality performing results in one of the most delicate process-step by step of the lost wax casting system.
