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Thread: Underwater robots
www.piclist.com/techref/index.htm?key=underwater+robots
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face BY : Mike Kendall email (remove spam text)



> That is one of the cleverest ideas yet, especially
> if filled with waterproof grease or the like.
> Those fans are pretty weak but you see more and
> more brushless fans (DC) of higher power ratings,
> and one might be an ideal drop-in for a small sub.

many/most types of grease are conductive. silicone grease is outragiously
expensive.  try a search for gelstar.  I bought a gallon of this stuff for
20something bucks (I can't remember the exact price) while on a quest for a
similiar product.  It is a polyofelin product that is suitable as a direct
replacement for grease in regular machinery fittings, food service, and
dielectric applications.  A kind of do-all grease that is cheap to boot.  It
is clear just like silicone grease.  Before finding this I even tried making
homemade petroleum jelly out of mineral oil and paraffin.  That  was a
smashing failure.  It does not have a stable temp. range as does this
gelstar stuff.
Mike


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