The DL3-PC utilizes a Posiflow rotary pump design which has no gears to wear and is resistant to abrasive fillers. Both pumps are driven by brushless AC motors. A key feature is touch pad programming of mix ratio and flow rates. The process can be password protected preventing unauthorized tampering with critical settings on the machine. A variety of feed systems are available and include features such as high and low material level sensors. Since there are no hazardous solvents required for flushing of mixers, hazardous solvent disposal problems are eliminated. A Twinmixer® mix head, which includes a Posimixer® disposable motionless mixer or Paradyne® disposable dynamic mixer both incorporating a no drip snuff back, can be selected.