Martin,

My "black foam from hell" and its green variety was approx. an eight of an
inch thick. It must have come in sheets, some pieces were as large as
8"x6", some pieces as small as 1"x1". It appeared to be polyurethane,
however, I have never seen polyurethane crumble like this material did.

>  From the description TBFFH - that rings an old electronic bell.
>
> The semiconductor market used black - a carbon filled (almost looked
> like a spray on )
> - foam to provide an ohmic short between transistor and IC 'legs'.  I
> have many a sheet of it
> with parts on that crumbled.  I suspect the black is appealing to some
> for contrast
> and the sheets were perhaps cheap.  Harris in Florida and NASA - might
> have
> dumped a number of surplus sheets.  PC part houses used it by the 'yard'.
>
> Martin

>> Some of the specimens were
>> stored in open trays with foam in them, some in plastic boxes with foam.
>> Most of the foam was black, some was green. I started referring to it as
>> the "black foam from hell."
>>


Regards,
Charlie
.................................................
Research Associate - Section of Mollusks
Carnegie Museum of Natural History
Pittsburgh, PA, USA

Assistant Professor - Family Medicine
Fellow-American Academy of Family Practice
Fellow-Academy of Wilderness Medicine

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