Phase change material (PCM) cold pack is able to enhance the thermal management of the vacuum insulated box for a low temperature cooling system during its discharging cycle.
The outer shell of it is food grade HDPE hard plastic that is safe, odorless and green. And the PCM-filled HDPE filled with 90% of its volume, can be frozen without any deformation.
The phase transition temperature range of the PCM cold pack: 20℃, 15℃, 5℃, 0℃, -20℃.