well, i was going over the designs for my server rack enclosure, and it occurred to me, how do i seal around bundles of wires passing in and out of the enclosure. the ventilation system in my rack is negative pressure, and draws in through a filter. the enclosure is in my basement and there is a wood stove down there (ash dust), so the air coming in needs to be filtered. so what is the best way to non-permanently seal around the wires?
I was thinking of using just a tube, and pack shipping foam tight around the wires.
I was thinking of changing it to a positive pressure, negating the need to seal the wires, but the rack enclosure is mostly built, so it would be a major pain in the *** to change it now.