Measuring the Viscosity of the polymers becomes easier when they are kept in molten state. The viscosity of the plastics greatly affects the quality of the molding process of the plastics. The manufacturers of the polymer material analyze the Viscosity of the Polymer Melt using high-quality of testing machine i.e. Melt Flow Index Tester. In this manner, the manufacturers can easily ensure the quality and efficiency of the plastic products. This also offers the complete information regarding the molecular structure and chemical behavior of the products. Presto’s MFI tester is highly accurate and precise test machine which is used in different industries to test the Viscosity of Polymer Melt and offers 100% accurate results.