Black foam is used as cushioning in equipment cases.
After some time, It disintegrates into an oily gunk.
What's a good way to clean up the mess?
Alcohol doesn't seem to help.
I'm afraid to get too aggressive with chemicals
cause I'd like to keep the outside plastic case intact.
Yeah, that stuff is nasty once it self-destructs. Best solvent depends
on what type of foam it is, so you want to remove as much as you can
with it dry, using a sharp putty knife. Never tried wd-40, but I usually
start with the less disgusting materials like windex, goof-off, 90%
rubbing alcohol, and spray cans of cheap hairspray. If anybody has other
suggestions, please speak up- I have a couple of salvaged Zero cases in
my 'one of these days' project pile that I have been procrastinating
cleaning up. I don't use the rubbery-feeling black foam any more- I use
the the gray or pink stuff electronic gear is packed in now. Not as much
shock protection, but it does not get sticky. If I can scrounge it, I
use the closed-cell stiff foam- much harder to trim to fit, but it seems
to last forever.
Haven't had to deal with that problem for some years, but a good
procedure might be to shop the solvent section at your paint store and
pick up the smallest container of every solvent they have along with
some Stripeze paint remover (contains methylene chloride). Regular
paint thinner won't work, so skip that. Automotive gas additive HEET
is all methanol which has much different solvent properties from
ethanol so try both. Based on the chemistry of the materials, xylene
may be a good prospect. If the case is molded polypropylene you should
get a good result.
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