Loctite 242 vs 243: What’s the Difference and Which Should You Use?
If you have spent any time wrenching on engines, machinery, or even furniture hardware, you have probably reached for a blue threadlocker at some point. Loctite 242 and Loctite 243 are the two most common medium-strength blue threadlockers on the market, and they look almost identical on the shelf. Same blue color, same bottle size, … Read more