My dad has an antique wood 4' level. He found replacement glass bubble vials to replace the broken ones. The old ones are mounted inside a brass tube. The vial should be mounted solid, and the tube is adjusted to calibrate.
The question is:
What would be the best thing to glue the vials into the brass tubes?
I would think the original tolerances would have been close, It may not need adhesive, maybe a bit of heat on the brass tube to expand it to allow the glass vial to fit.
If not I'd probably go with epoxy, but try and apply the same amount in the same locations uniformly on each end....just to minimize/equalize any movement due to thermal or moisture activity.
S/V Arctic Lady
I love my boat, I can't afford not to!
That may have been window glazing...you can still buy that if he's trying to keep it semi original.
Ah, maybe it's a linseed oil based glazing or putty. The current stuff they use for glazing will get hard after several years. But the old linseed oil based stuff stayed semi-flexible for decades. That may be headed in the right direction.