🚀 go-pugleaf

On Tue, 26 Dec 2006 23:07:20 -0800, �rkba@ca.rkba.org wrote:

------------------------------

Date: Wed, 27 Dec 2006 07:42:24 -0500
From: "Letsgosailing" 
Subject: Re: Bonding (Scope Base Adapters) for Hand-gun

You must use RED permanent locktite,
if you like to remove the screws at a later date,
reheat them with a baby flame torch and the locktite releases.
of course do not use more than to slightly cover the threads
because it will create hydraulic pressure when you tighten them
in and although the screws won't be bottoming the locktite
will prevent them to go further in and it will cure and the mount will be 
loose.

Yanni Marinated
S/V Princess Thalia
Hamilton
www.yannismarine.ca

On Tue, 26 Dec 2006 23:07:20 -0800, �rkba@ca.rkba.org wrote:

|>------------------------------
|>
|>Date: Wed, 27 Dec 2006 07:42:24 -0500
|>From: "Letsgosailing"
|>Subject: Re: Bonding (Scope Base Adapters) for Hand-gun
|>
|>You must use RED permanent locktite,
|>if you like to remove the screws at a later date,

	I was looking for something more permanent, for a  Rail/(Scope Base
Adapter) since I can remove the rings and use the standard/slot-blade sights
later sort of a (tip off) ring. 

	I have a few handguns witht this varied arrangement, and they
generate more cant/axis recoil than a most rifles, so the (Scope Base
Adapter) has to be extra tough.... 

In article <1064p2du8gp5fo0a05o4u3n9os6odhpib7@4ax.com>,
-remove_this_to_email-vampire@istar.ca wrote:

>         Does anyone have a good recipe/bonding agent for mounting hand gun
> scope/dot RAILS/(Scope Base Adapters) on the handgun receiver that accepts
> those small screw configurations....  
> 
>         I've used so-lo mounts, weaver rails with Super/Krazy Glue for this
> part and varnish for the rings.
> 
>         A lot suggest locktite like Blue 247, but this has to be more
> permanent, since retightening is not an option with low rings and the
> (Scope Base Adapters).
> 
>         Seeing that  (Scope Base Adapters) are dumb in the first place as
> to their little screw base as opposed to machined rails/grooves it isn't
> the easiest to make it long term...and lots'a work to re-do too.
> 
>         The fact being the screws are usually just above the chamber, the
> epoxy types aren't so good since the heat is way above 140deg F. where
> Super/Krazy Glue starts to lose their Grip.
> 
>         Since a Ruger MKII H-gun has a very thick bull barrel, it might be
> good to re-tap and die to a deeper level<--also costlier, since most
> receiver screws are no bigger than the grip screws they dupe as.
> 
>         Welding  (Scope Base Adapters) is not the best idea because of cold
> rolled metal used and the quality of Ruger MKII Stainless steel is dubious,
> although it is tough to custom cut.

If you want to bond the mount to the gun, then I would suggest a structural
adhesive designed for metal bonding.
Government spec MMM-A-132 Type III  which is a film adhesive 
see Am Cyanamid HT-424 or Scotchweld AF-7431

Another  material I would look at is Emerson-Cuming EC 2216

Cyanoacrylate adhesives aren't that good under temp and shock.

Remember that the gun is stainless and the bases are probably 
aluminum so the adhesive can't be too rigid. 2216 is fairly flexible.

-- 
Harry Andreas
Engineering raconteur

"Harry Andreas" <andreas@computer.org> wrote in message 
news:andreas-0401071723040001@147.16.85.59...
> In article <1064p2du8gp5fo0a05o4u3n9os6odhpib7@4ax.com>,
> -remove_this_to_email-vampire@istar.ca wrote:
>
>>         Does anyone have a good recipe/bonding agent for mounting hand 
>> gun
>> scope/dot RAILS/(Scope Base Adapters) on the handgun receiver that 
>> accepts
>> those small screw configurations....
>>
>>         I've used so-lo mounts, weaver rails with Super/Krazy Glue for 
>> this
>> part and varnish for the rings.
>>
>>         A lot suggest locktite like Blue 247, but this has to be more
>> permanent, since retightening is not an option with low rings and the
>> (Scope Base Adapters).
>>
>>         Seeing that  (Scope Base Adapters) are dumb in the first place as
>> to their little screw base as opposed to machined rails/grooves it isn't
>> the easiest to make it long term...and lots'a work to re-do too.
>>
>>         The fact being the screws are usually just above the chamber, the
>> epoxy types aren't so good since the heat is way above 140deg F. where
>> Super/Krazy Glue starts to lose their Grip.
>>
>>         Since a Ruger MKII H-gun has a very thick bull barrel, it might 
>> be
>> good to re-tap and die to a deeper level<--also costlier, since most
>> receiver screws are no bigger than the grip screws they dupe as.
>>
>>         Welding  (Scope Base Adapters) is not the best idea because of 
>> cold
>> rolled metal used and the quality of Ruger MKII Stainless steel is 
>> dubious,
>> although it is tough to custom cut.
>
> If you want to bond the mount to the gun, then I would suggest a 
> structural
> adhesive designed for metal bonding.
> Government spec MMM-A-132 Type III  which is a film adhesive
> see Am Cyanamid HT-424 or Scotchweld AF-7431
>
> Another  material I would look at is Emerson-Cuming EC 2216
>
> Cyanoacrylate adhesives aren't that good under temp and shock.
>
> Remember that the gun is stainless and the bases are probably
> aluminum so the adhesive can't be too rigid. 2216 is fairly flexible.

Also remember that it will usually help to roughen the surfaces to provide 
better adhesion, but check the product directions for specifics.