Balanced Filling in Thermoplastic Medical Molding

If molten plastic behaved like a simple fluid, there would be little need to worry about balanced filling during molding. The melt would fill the cavities like water, and the way the mold filled would have little or no influence on the properties of the molded parts. In reality, molten plastics are complex, viscous, and highly compressible fluids. How the mold fills can affect physical characteristics of the part such as size, strength, and appearance. Balanced filling can reduce part variations and improve part quality, both important in medical molding.