The electric strike (day lock) on the back door of my shop wasn't working. I could hear it click, but it wasn't releasing. Not an uncommon occurrence in the dusty southwest. In the past I have taken them apart, cleaned them and carefully lubed them with a good dry lube.
I just didn't feel like it. I blasted the strike out with Hoppes Gun Medic. The strike is working great. Now to see how long until the lube in the Hoppes gums it up with dust and I have to clean it again.
I actually prefer Ballistol for the labeled purpose, but the local stores only seem to stock the Hoppes in larger cans.
To be fair to the strike I don't think I have EVER cleaned it since installing it around the end of 2014. Sorry. Can't tell you the brand. I forgot, and if I wasn't going to take it apart for a necessary cleaning I'm sure not going to open it up just to read the name.
For their intended purpose neither clean/lube product gums things up, but I don't leave those items on the outside of a building all day every day either.