I use it on the PTO output shaft of my tractor and on pivot points that do not have grease fittings. I mistakenly left a can sitting out by my tractor attachments exposed to rain and summer sun. I'm not sure how long I left it there but other then the can being faded by the sun it still works fine. When I found it I thought I was going to have to trash it. I've had aerosol cans of products go bad without being left in the sun.
Its allot better then smearing grease on parts by hand.