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Reversible Sight Adheasive

Discussion in 'Gunsmithing and Repairs' started by Bwana John, Feb 1, 2020.

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  1. Bwana John

    Bwana John Member

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    Reversable Sight Adheasive?
    I need to "glue" a rear aperture sight on to a receiver, and then remove it after accuracy testing.

    Rifle is a Martini Cadet, in .310 Cadet (basiclly a .32 H&R mag)

    Sight is a BSA #7 intended to be installed on the Cadet with 2 screws.

    Bottom of sight and rear of receiver match profiles very well.

    Rifle generates very little recoil.

    I have manufactured ammo using 7.62 Nagant brass, cast and powder coated projectiles, and the little rifle keeps shooting better and better, but I have reached the limit of my older eyes using the standard sights.I started with my reloads shooting ~ 10 moa, and have gotten it down to ~ 2.5 moa, and feel the rifle can shoot even better.

    I don't want to drill and tap the receiver and ruin the collector value but have been enjoying the process of bringing this little rifle back to not just operational condition,but back to its full potential.

    Can anyone recommend a reversible adhesive for steel?
     
  2. WestKentucky

    WestKentucky Member

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    Is the area where you intend to glue the sight on slick or is it textured?
     
  3. Bwana John

    Bwana John Member

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    Both sides slick but receiver sight base where adhesive to be applied is drilled and tapped for mounting screws.
     
  4. Blue68f100

    Blue68f100 Member

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    3M makes some high strength 2 sided tape that might work for you. It has a rating of around 90# / sq in . Comes in a roll around 3/4" wide. Think I found it at Home depot or Walmart, been over 4 yrs since I bought it.

    LocTite has some thread locker that will work but you will need to apply heat to remove it after wards.

    The 3M adhesive I used was red in color.
     
    Last edited: Feb 1, 2020
    sparkyv likes this.
  5. shoobe01

    shoobe01 Member

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    I'd also suggest tapes. I like this for several purposes, have done stuff like temporary sight fitting with it, rarely:

    https://www.amazon.com/gp/product/B0000CBJBO/ref=ppx_yo_dt_b_asin_title_o02_s05?ie=UTF8&psc=1

    VERY thin stuff, so doesn't mess up dimensions much more than things like adhesive liquid layers.

    Degrease well and it will likely hold. If you can get around properly (I may be misunderstanding which sight you are assembling), I'd consider mechanically retaining as well. Chunk of bike inner-tube, for example, to keep the sight tight to the stock/barrel assembly. Very safe, non-marking, reversible, and secure enough for pretty real recoil then.
     
    sparkyv and boom boom like this.
  6. Scooter22

    Scooter22 Member

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  7. beag_nut

    beag_nut Member

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    That happens to be one of the very best shock-absorbing and durable cyanoacrylate adhesives in the world. I know from my experience using it in industry. Its only disadvantage is it should be stored under refrigeration. I have a little bottle in my fridge right now, waiting for its next use. Just make sure that the surfaces are really clean ahead of time. The stuff is almost unbelievable.
     
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