[pianotech] McLube ... or McCrud?

John Formsma formsma at gmail.com
Mon Jan 19 19:14:06 PST 2009


Shop cleaning today. Noticed some strange growth in an unopened bottle of
McLube 444? that I'd bought at the Rochester convention. So that's been 2
1/2 years ago, right?
It has been unopened, as I've been using up other lubes that were already
opened. Notice the line of crud going from the bottom to the lid.  It's like
it's growing from the bottom up.  Weird.  When shaken, it did not return to
the clear substance that it was when purchased.  It had chunks of stuff
floating in it, and was very murky looking.

Any of you guys know what that crud growth might be?  I'm no chemist, but
I'd say whoever packs this stuff in the bottles should find an alternate
container. Some reaction in the liquid to the lid material?  Or reaction to
the plastic bottle?   ???

-- 
JF
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