If you're looking to keep the various fasteners in your latest mechanical project firmly where they're supposed to be, a few drops of Henkel's Loctite threadlocker can do you some good. These liquid ...

According to Loctite’s manufacturer, Henkel, Loctite (loctiteproducts.com) does go bad. The technical data sheets of both thread-locker 271 (red) and 242 (blue) say that the shelf life of each is 24 ...