I bought a couple of what I think are heavy padlocks to protect my trailers loaded with my yard equipment. My box trailer worth a pretty penny is loaded with my garden tractor, a spare snowblower and my main blower. It also has a nice Honda self propelled mower on it.
Anyhow, my old Master padlocks (sorry I bought them but w/e) are huge but useless as you can attack them 6 ways from Sunday to defeat them. They would freeze a lot in inclement weather, even if I was liberal with oil in the fall. Since they are spring actuated it's likely the spring and pistons froze deep within the lock. No way, no how to open it without hot water or a torch. Neither method thrilled me.
My new locks have decent features, shrouded hasp 11mm diameter, brass cylinder and brass/steel pins, and no springs. When the key opens it the hasp stays still but will easily fall open if the lock is turned upside down. These locks are likely to be in snow in -25C temps.
Any ideas what I can flush the locks with that will "weatherproof" them? It would be nice to just need the key to open them without a blowtorch in the winter.