RimfireCentral.com Forums - View Single Post - Dovetail cut in BB barrel? - Aperture Sights for BI 7-2, Engineering Grade Epoxy
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Old 10-31-2008, 02:00 PM
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aom22
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Engineering Grade Epoxy

Quote:
Originally Posted by NOOk22 View Post
If I could find a clamp on dovetail that would work better,
but all the ones I have seen are huge blocks
... I can get another one that slips over the BB
Quote:
Originally Posted by doubs43 View Post
... I once knew used Accraglass to permanently mount sight bases and sights.
It grips like death but can be broken loose with roughly 300 degrees of heat.
He never had a sight put on with Accraglass fail.
The BI 7-2,3,4 series use an engineering grade epoxy to secure the barrel to the receiver.
I do not know the source of the adhesive used by Izhmash.

When I first learned of this, I wasn't very confident in the technique.
Apparently, Izhmash has had good expericance with this process.

Perhaps the lack of recoil of a rimfire is the explaination.

NOOk22 for your application: Choose A Glue: Metal-to-Metal

I think Loctite 271 would work well.
Quote:
OEM specified as 271

High temperature, high strength for heavy duty applications

Designed for larger fasteners 3/8" to 1" (9.5mm to 25mm)

Locks studs, bushings and large fasteners against vibration loosening

Strengthens slip and light press fits

Removable with heat and hand tools
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Last edited by aom22; 11-10-2008 at 04:55 PM. Reason: Add Link & Text
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