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I've mentioned this before but again:

Boeings first choice for solvent wipes
is MEK because it is relatively safe
to use and works. The downside is
that it causes smog.

When Douglas was Douglas their first choice
was MeC12 because it is the non-smog
producing alternative to MEK and approved
for California the no smog state.  Douglas was
based in CA.  MC may also cause cancer.

Acetone is dangerous to store in your
house because its vapors are heavier
than air and in the right combination with
air is explosive.

I was advised by my Boeing chemist brother
to use MEK as a solvent wipe in all states
except California (MC in CA) and not to
store acetone in my house.

Jim Frantz
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