Thread lockers have been around for a long time. For years, the products available to consumers come in liquid form. Since I began working on cars in...well, if I told you now long, I'd have to kill you. Suffice to say it's been a few years. Anyway, most of the thread lockers I've used come as a liquid in squeeze bottles or small tubes.
Recently, the Permatex folks came out with a thread locker in gel form. The big difference between Permatex Threadlocker Gels and regular Permatex Threadlocker is the product's gel-like consistency. The advantage of that is ease of application–when you put it on a fastener, it stays right where you apply it. The gel formula, as Permatex says in its marketing info, "...provides “liquid-reliability” without drips, globs, mess or waste."
I've been using the Medium Strength Threadlocker Gel for about six months and, so far, it's made every application of thread locking compound I've run across easier. In fact, I'm no longer using liquid thread locking products.
For more information, visit www.permatex.com