Y'all been using the wrong Loctite

[TN_Yankee]

Just kidding, but I did find this a bit interesting.

Purple Loctite (#222) is for 1/4" (~6mm) and smaller fasteners - in other words, EVERY fastener on an airgun.

Blue Loctite (#243) is for 1/4 - 3/4" (6-20mm) fasteners.

Obviously, other brands may be different colors.

https://www.henkel-adhesives.com/us/en/products/industrial-adhesives/threadlockers.html

 

[Larryt]

Yes, Purple is the one, does the job off holding everything on an Airgun, but is removable without heat or stripping screw\hex heads.

 

[elh0102]

I have found that any type of thread locking compound is only rarely needed on air guns and is widely overused. IMO, it is needed only on very small fasteners that will not accept much torque but are subject to considerable vibration or stress. My rule is to never use it unless the fastener has loosened with normal use, i.e., don't assume that it is needed.

 

[nervoustrig]

 

[Bernie7]

I only ever saw red and blue, I didn’t even know this existed, thank you! Considering putting some on the end of my Leshiy barrel for the trilug QD adapter.

 

[Long_Gun_Dallas]

I use red and blue as well blue is honestly as weak as I want any to be. Usually just put it on real thin. Same with red. But red can be a little too stubborn sometimes. And god forbid you get sloppy with any of it.

 

[TN_Yankee]

I see Permatex & Vibra-Tite use the same color scheme - purple for low strength, blue for medium, as do some other brands I've never heard of.

 

[Hateful McNasty]

Orange use to kinda split blue and red.

Higher strength but still fore removable parts as blue.

https://www.permatex.com/products/t...adlocker-orange-10-ml/?category=937&radius=10


Thing is no one has it except mail-order.

Or local shop online says they got it in stock just so you drive in to find they don't . Daa ha ha all we ever sell here is the red .daa haa haa . ( Store clerk explaining why there's none ..lol)

 

[Firewalker]

Vibratite on airguns. I secure all the trigger screws with it so they don't wander but they can still be adjusted.

 

[jarmstrong]

and there also is the GREEN wicking loctite

Central PDP

LOCTITE® 290 is a green, medium-high strength threadlocker designed for the locking and sealing of threaded fasteners. Because of its low viscosity, the product wicks between engaged threads by capillary action and eliminates the need for disassembly prior to application. This behavior makes the...

next.henkel-adhesives.com

and another green for sleeves

LOCTITE® 640

High strength, methacrylate ester-based retaining compound that is slow curing; ideal for large diameter components and active metals such as brass.

www.henkel-adhesives.com

that said: there is NO loctite on my guns screws and no anti-seize, but I do sometimes use a little liquid elec tape on screws/hammer adjusters that can wiggle loose

 

[bigHUN]

Also to add a note about torque values...
When I say 2.2 Nm "WET" for 3mm screw that engages 1.5x thread length - when that thread drys up (let say after 23 hrs) to break loose you need to apply 3.5 Nm, and this must be taken into consideration how the thread in the female side was designed....
When use torque value for a "DRY" screw that is totally different.
And btw the Japanese or German precision assemblies also have white and other colors.
A substitute for loctite or thread locker kind of thingies - you can use springlock washers or belleville or nordlock or ...there are a lot of options to skip the loctyte.