best lube for a padlock

We have a padlock on our main gate and there have been a couple of times it got a bit sticky.

In the early days, I used graphite.   Very messy and didn't seem to do well when subjected to a lot of rain or freezing.  

Then somebody else LOVED using wd-40.   That was spotty.   We even had some in a jar where we could soak a lock.  But I always thought that wd-40 was more about getting past the rust and any lube effect would just be temporary.


So, I spent about four hours researching about two years ago and found a really great web page by a locksmith comparing about eight different things.   In the end, the locksmith suggested a product called "houdini".   We tried that and it seems to be okay - but there still seems to be room for improvement.

Today I was looking for the article, but couldn't find it.   I did find this video.   The guy makes it clear which product he likes, but I haven't been able to find it:



So, I'm starting this thread to see if there are other schools of thought, or maybe somebody can find that article I mention above.

was he using these on padlocks? they look like door lock cylinders. maybe instead of trying to find the perfect toxic gick, we can think of ways to keep rain off the lock.

How about a nice piece of innertube to give watershed to the lock? A friend lavished on his wife and built her a lovely chicken coop complete with an egg snitching door and a shelter for the layena feeder with a lid/umbrella/cover that raised and lowered with a winch. He made the control water resistant with a chunk of tire inner tube very firmly fastened to the wiring cord and hung it on the fence. He made it so you could look/check for unwanted arachnids or wasps up there before you reached for the buttons...

Around here, routine maintenance on gate locks involves replacing them every year or two as they fail due to weathering.  

I've been using gun oil. Readily available at any gun shop. I bought a bottle 12 years ago and still have enough to last my lifetime.

The lock for the gate is pretty protected from the elements, but natural condensation from morning dew to cold temperatures will have their way with most locks. Seems to me the best solution is to let Paul, Jocelyn or Fred know if you are having issues with lock so maintenance can be done when needed.

Sewing machine oil penetrates and protects.

Is it this one?



https://www.amazon.com/HOUD1-Houdini-Lock-Lube/dp/B00C5JFKKE

I buy Boeshield for my bike (ridden year-round) but it protects other things, too.
https://www.amazon.com/Boeshield-T-9-Waterproof-Lubrication-aerosol/dp/B000GE1F9K/

A rubber flap to shield rain and dew. Split open a cheap carpenters pencil and grind up the graphite rod. Into dust. Work the dust into every moving parts you can find. you write underwater on slate, with a normal pencil. So think of how it could stand up to a little condensation.