Both Types Are Medium-Strength Blue Loctite Before we get into the differences between Loctite 242 and 243, let's first cover their major similarity. Specifically, both of these Loctite products ...

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 ...

If you're looking for a blue Loctite product that will hold a bit firmer to its applied fasteners to endure the elements for a bit longer, Loctite 243 will weather the storm for you with a bit ...