IBM seemed to have a fondness for black foam in their equipment
(typewriters to RS/6000 and PS/2 systems), which I suspect was used for
noise dampening. Unfortunately, the foam comes off and leaves black
grime along the airflow channels. It also deteriorates, so when
confronted, it's a sticky, gooey mess that is hard to remove. It's not
a pleasant task to get it off, but I am willing to do it. My concern is
that the placement of the foam was also used for airflow regulation.
With it gone, the system may overheat. Has anyone had any experience
with this stuff?
Kirill