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"tommy g" wrote in message
ink.net...

"Joseph Meehan" wrote in message
...
z wrote:
Joseph Meehan wrote:

There are two totally different parts of a lock. One is the
tumbler (the part where you put the key). That you don't want to
lube as much as you want to keep it clean. A zero residue cleaner
is best. I like to use a little graphic when done. NOTE: WD40 is
an oil and is not zero residue. It will leave a thin film of oil
that will in time collect dirt as will any oil. There is a product
call lock ease that works well. I will also suggest that the
Teflon based lubes often work well.

The other part of the lock is the part the actually holds the
thing shut. That also needs to be kept clean, but it also often
needs some additional protection from the elements. For that I
would agree with most of the suggestions make. A lithium based
product may be best. It will likely need cleaning and
re-lubrication often where you live.

--
Joseph Meehan

Dia duit

Well, yet another opinion:
I would think even 30 weight oil, let alone various greases, would
promote sticking of the teeny weeny internals of the lock. That's why
they never recommend 3 in 1 oil. WD40 is thin to begin with, and at
least evaporates leaving no gunk behind,

If that were only so. It does leave an oil film behind. Most of it
does evaporate, but enough remains to cause problems.

but by the same token long
term corrosion protection might need to be reapplied now and then.

If WD-40 did not leave anything behind it would leave no corrosion
protection at all.


So you want something light/thin, that evaporates without leaving a
residue, but not too quickly. Maybe dunk it in kerosene? Silicone oil?

That is not what I asked for. I suggested that you might want to use
a
"zero residue cleaner" anything that is lube is not going to be zero
residue. Graphite is not a cleaner, but it is a good lube for some uses.
It is a solid.

--
Joseph Meehan

Dia duit

I've had a combination outdoor lock on my shed for 17 years. I use 3in1
oil
on it every spring and it still works as good as it did when new. I have a
flap (a piece of old conveyor belt) attached above it to cover it and
shelter it from the elements.