I've got a cheapish (Master) rubberized lock on an outside gate that has not
been opened in a while. So it won't open when I turn the key now. I don't
know if the key is not turning fully or if the shackles are stuck.
What's the best approach, whack it with a hammer?
Believe it or not, OIL works better than Graphite. Start with WD-40 (which
isn't a particularly good lubricant) and then shift to penetrating oil.
Inject the WD-40 and penetrating oil both in the keyhole and the shackel and
Tapping with a hammer might help shake things loose.
I've had good luck flooding seized padlocks with wd-40. And before all the
wd-40 flamers chime in, yes, I did follow that up with silicone spray after
the next trip to hardware store. And yes, a gentle rap with a hammer, and
pushing UP on the lock, sometimes help.
BTW, Master (the brass-key ones, at least) are pretty decent padlocks, beat
the hell out of the cheap imitations. I've never had one outright fail on
me. The no-names at the dollar stores are to be avoided, IMHO.
OK, so what's the deal with WD-40 and silicone?
I'm replacing the lock with one that's keyed like the shed so I don't have
to carry a bunch of keys. New locks are laminated and BIG, old lock was
thinner brass and rubberized, both Master.
Me too, and I don't care if people call it a lubricant or not. If I
spray some in and don't have any more problems for 10 years, that's
good enough for me.
Spray it in the key hole and both shackle holes.
This I wonder about. A) Even if the solvent would evaporate, is it
going to inside a lock? If it doesn't evaporate, is there room for
the silicone spray to get inside? If it evaporates but leaves a
residue, will the silicone stuff just sit on top of that?
I like WD-40 for locks, and don't bother with silicone.
Maybe not. I've talked to a friend of mine who runs a mini-storage,
with maybe 300 padlocks, and when the tenants lose keys or the lock
won't work, if has a thick shackle, even the big bolt cutters won't go
around it or won't bite when they do, or maybe if it is hardened too
they don't work. They have to use an angle grinder and it takes 15 or
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