I have an insulated plate separating a cold (-40C) and hot (+30C) chamber with electrical wiring running running through a hole in the plate. I am running into issues with the hot air infiltrating the cold side and condensing / freezing on the electrical wires, the wire connector on the cold side, and the unit on the cold side. I need a non-permanent, easy to install / remove solution to help minimize warm air infiltration from one side to the other to limit the amount of condensation and eventual freezing.

Any suggestions?

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