Question for the tool gurus out there. I went to use my finish nailer today
and discovered that my bottle of lubricating oil had spilled over. I went to
the only hardware store that was open this afternoon to try to find some but
nada. So I picked up a bottle of Marvel Lubricating oil
The clerk said it would work fine......I used it today, but I'm wondering if
it would be safe to continue using or should I replace it with labeled air
some finish nailers are silicon anyway.
I would only use pneumatic oil in an oiled gun.
I believe it is a oil like brake fluid that does not rot the rubber seals.
I think you have that answer already.
DOT 3/4 brake fluid is water based glycol solution. Interesting stuff,
but doesn't combine with oil at all, and will absorbe moisture so fast
your head will spin! DOT 5 silicon brake fluid is 'oil' based,
however. None are terribly good lubricants compared to oils.
Now to the crux of the matter. What rots rubber is not 'oil' as such,
it is the detergent that is added to virtually all oils today. Any
non-detergent mineral oil (such as hydraulic oil, for example) works
well, but since air-tool oil is so easily found, that is the best
thing to use.
Of course, if you have a lot of heavy equipment, you probably have
5-gallon buckets of hydraulic oil (or worse, 55 gallon drums!) which
could be used if you wanted to.
One other point is that the oil should come from a good maker, so that
it does not have a lot of volatile components. Worse thing is when the
volatile oils vaporize off, leaving a non-lubricating sludge or grease
which gums up the works. This is especially true with air-tools with
motors in them (such as any with circular motion).
Don't use that stuff... Marvel does make an air-tool oil, if you like
their products (they are good), or get some other brand air-tool oil.
You take a real risk of ruining the seals in an air tool with the
That would be a stretch for "most", methinks... :)
I've never seen it used for the purpose, myself.
For "emergency" use, it's probably ok; having looked at the stated
purpose as a solvent/rust remover for bolts and the MSDS that it
contains several highly volatiles (as one would expect for the stated
purpose) I would _NOT_ recommend it for air tool lubrication for long
term use, particularly when lubricants specific for the purpose are
If it were this marvel instead, I'd agree... :)
In comparing MSDS, the volatiles are lower ppm in this one although not
specific in ingredients and much is similar, that the other is intended
as a penetrating fluid w/ some residual lubrication dictates against it
as a primary lubricant.
Again, it'll work ok for a stopgap but would be better to use a
dedicated-for-the-purpose lubricant in the long term
(And yes, I'm looking for something to do this am as have enough of a
head cold to be restricted to quarters but not feeling badly enough to
just collapse... :) )
Thanks for all the input. That oil got me through the day yesterday,
hopefully with no ill effects. I went to the regular hardware store this
moring and picked up a bottle of real pneumatic oil. Should be fine now.
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