![]() Epoxy doesn’t really work well at all unless parts have been “roughed up” - it has to have a gap to seal to get maximum hold. Unlike epoxy (exactly unlike epoxy), threadlockers work best where there is only a tiny gap between parts. You can drip a few drops on the bench and it will stay liquid until some great time passes and some evaporation occurs. Threadlockers won’t set or cure in the presence of air.Do not shortchange or disbelieve the manufacturer instructions: it takes a FULL 24-hours to cure! That’s not “all afternoon,” or even “overnight.”.Use a residue-free degreaser, like brake cleaner, electrical contact cleaner, denatured alcohol. It is absolutely necessary to get the threads and the threaded both down to their bare metal.Now, in general, there are a few things to know about threadlockers, and this applies to virtually all of them regardless of strength. Here’s another application of Red that sure makes brake installation easy! If you chose this route, just put the glue right back against the muzzle shoulder that’s all that’s needed. set screws).Īpplied over a large area (like threads on a collar), blue or purple may well require some heat to turn loose, but a heat gun is usually adequate. Green: Considered “medium-to-high strength,” while blue is medium strength, green threadlockers are ideal for preassembled fasteners (e.g.There are different “levels” of red from different manufacturers, but all are considered “permanent” in their applications there are small differences in formulations based on fastener area size. On the other hand, whatever it’s used on is forever done, the parts are patently solidified. And when I say a whopping lot, that means it’s a good 500-degrees worth. It takes a whopping lot of heat, for longer than you might imagine, to break loose (especially a larger surface area parts pairing). Don’t use it nilly-willy, think it through. These have pretty much the same effect as the nylon insert inside a nut, as is familiar to mechanics. Glue goes on the mating surface and also the screws.Īgain, something like a trigger adjustment screw (common application) can still be turned, it just makes the screw “sticky” in a way of looking at it. Do this in place of staking carrier screws. A good use of Red: bolt carrier key installation. diameter) threaded pieces and blue works best on larger threaded areas.Įither of these threadlockers dissuades unwanted movement otherwise primarily induced by vibration. There’s not a big difference in the effective holding power of purple and blue, just, again, that purple works best on small (smaller than 0.25-in. ![]() It gives up its hold a little easier than blue, which is a bonus if it’s holding small screws (which have small driver fittings).
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