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Loctite 242 / 243

Discussion in 'Anything Airgun Related' started by Brickhill, Mar 26, 2020.

  1. Brickhill

    Brickhill Engaging Member

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    A quick question if i may?
    I'm running a few spring powered air rifles at the moment. Two are rock solid in terms of where they are putting pellets shot to shot. Two are showing signs of poorer results. I'm confident it isn't anything to do with pellet choice. I've checked them on a bench and the screws seem to be working loose which must change the accuracy of these guns. Would you advise using the aforementioned loctite options to secure the screws in to a more permanent position?
    Is this recommended or are there any better alternatives?
    Many thanks in advance for your advices.
     
  2. TORNADOS7

    TORNADOS7 Major Poster

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    As long as you only use a semi rather than a permanent grade then can't see an issue...

    Most would just check the stock screws every so often though buddy...

    You know, I've never had an issue with stock screws in all my years of shooting springers, weird ain't it... :shrug:
     
    Brickhill and Seamaster like this.
  3. Zeroexpo123

    Zeroexpo123 Engaging Member

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    I use a tiny amount of Blue Loctite on one of my springers that had stock screws that loosened; it's easy enough to break the bond by hand when doing routine maintenance.

    Just don't use red Loctite as that requires heat to break the bond.

    Two people at my range also use PTFE tape which also works.
     
    Chouchin66, Brickhill and TORNADOS7 like this.
  4. Spray1Mark

    Spray1Mark Pro Poster

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    It's only medium strength, I think 243 only has a better oil resistance VS 242, in case of not being able to degrease as effectively I suspect.

    Perhaps if you took the austin 7 suspension coil spring out of the guns it wouldn't happen?
     
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  5. 2506sendero

    2506sendero Legend in his own mind & living on the edge.

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    243 is perfect for a good fix that you can undo if you need to, i use it a lot on my knife pivots etc.
    I got a bit of a shock last time I checked the price, but I think that similar things are available from Halfords etc that will do the same job.
     
    Last edited: Mar 27, 2020
    Brickhill likes this.
  6. Jonnyovy

    Jonnyovy Very Active

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    243 will be fine. Just a dab on thread will do and its weak enough to break without heat.
     
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  7. sabc

    sabc Donator

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    Yep I use 243 a lot at work it’ll do the job if used sparingly.
     
    Brickhill likes this.
  8. Brickhill

    Brickhill Engaging Member

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    For years, I was the same with no issues. My HW80 looses accuracy after roughly 150 shots or so. I never has any issues with other HW80's
     
    TORNADOS7 likes this.
  9. Brickhill

    Brickhill Engaging Member

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    Thanks a lot fellas for your advices. I've just ordered some Loctite 243 off Amazon for £4.20. Small tube of the stuff but enough to do the job hopefully.
     
    Zeroexpo123 and 2506sendero like this.
  10. PhatMan

    PhatMan Posting Addict

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    Brickhill,

    For 'every-day' use, I use Loctite 222, which is a low strength thread-locker; I use Loctite 242/3 when I need something a bit stronger.

    One word of caution :

    Do not use thread-locker on the front trigger guard screw of a TX200 !!!!

    If you are unlucky, it will bind together the front trigger guard screw and the trigger block retaining screw.

    When you then later try and remove the front trigger guard screw, screw, it will unscrew the trigger block retaining screw at the same time - you do not want that !!


    Yes, this happened to me :(

    Have fun :)

    Best regards

    Russ
     
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  11. Brickhill

    Brickhill Engaging Member

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    Hi Russ, thanks for the heads up ! Fortunately it's not a TX200 effected. There are three springers i'm planning on treating. A webley falcon, Mercury and a HW80.
    Cheers!
     
  12. Brickhill

    Brickhill Engaging Member

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    Just thought i'd let you all know how i got on. My Loctite 243 off Amazon arrived yesterday for the princely sum of £4.20 delivered.
    I took all the suspect screws out of a Webley Falcon, Mercury S, Crosman Phantom Mk2 and an HW80. Probably overkill but I thought as I had the Loctite open "why the hell not", do them all while you're at it !
    I decided to let this loctite set for 24 hours, rightly or wrongly. This morning I put 20 shots through each gun, close range (15 yards) admittedly but the groups were much better for the
    Mercury S and the HW80. The other two guns were a bit better but i'm not sure they were that bad in the first place.
    So, the moral of the tale as far as i'm concerned is don't hesitate to put some loctite on your screws for your spring powered guns if you fancy shooting more consistently.
    Over to you !
     
    Zeroexpo123 and Sandy man 1963 like this.

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