MEDRON’s molding capabilities include both insert and injection molding formats for both thermal plastics and silicone materials. MEDRON provides quick turn around for both prototype and production molds, as well as rapid implementation of customer design changes.

Our molding capabilities include:

  • Thermoplastic and Silicone materials
  • Injection molding – plastic and liquid silicone injection molding
  • Insert molding
  • Overmolding
  • Quick turnaround for both prototype and production molds
  • Rapid implementation of customer design changes
  • Cleanroom molding and assembly

Silicone Rubber Compression Molding


When silicone components are produced using compression molding the rubber is physically placed into the cavities where the closing action of the mold completes the fill.


Silicone rubber compression molding is widely used for medical device components but requires more labor and longer curing times than Liquid Injection Molding (LIM).

Silicone Rubber Transfer Molding


Transfer molding is the process used for silicone gumstock applications to address such needs as complex shapes and thin walls. Transfer molding also is often employed for over-molding of metal and plastic inserts.


Silicone rubber transfer molding is used for both low and high volumes and offers shorter set-up time.  In transfer molding, a hydraulic ram displaces rubber through the gates and sprues into the cavities.

Liquid Silicone Rubber Injection Molding


The liquid silicone rubber injection molding process delivers two-part liquid silicone directly into a mixer, which is then injected into the mold cavity. This completely closed process minimizes human interaction and avoids contamination. The fully automated process is best suited for high-volume production, although FMI can adapt it to lower volumes if needed.


Liquid silicone rubber injection molding is best suited for medium to high volume production runs. Low production runs require frequent material changes and start-ups, which erodes the efficiency of LIM.