MuCell Extrusion LLC licences MuCell technology to end users. MuCell technology is a remarkable patented process that creates micro-bubbles in the core of plastic extrusions by injecting gas into the melt as they are manufactured. This produces a foam that performs like solid plastic. The end user will not notice any change in the part as the MuCell bubbles in the core layer are so small that they are barely visible to the naked eye. The outside layers are often solid plastic. Pure atmospheric gases, nitrogen and carbon dioxide are the foaming agents which create the bubbles. A MuCell extruded part or product will typically use 15-20% less material. MuCell is a registered trademark of Trexel Inc, licensed exclusively to MuCell Extrusion Technology LLC for use in microcellular foaming of extrusion products.