Glue experts enquire within.

[Mark 2]

Need to join a fossilized wood table top (think 1000s of years old, think very rare ) to mild steel under structure.
The wood is highly polished.
What does the panel think.

 

[tom2207]

Need to join a fossilized wood table top (think 1000s of years old, think very rare ) to mild steel under structure.
The wood is highly polished.
What does the panel think.

tec 7 I would probably look at putting in dowels , maybe brass first , thread the dowels and glue them in , depending on the thickness you have to play with , or make up a mounting plate say 4 inches square and put a threaded stud into the middle , mount the stud plates to the frame , then glue the plates to the table top ,, again I like tec7 any other two pack glue would do , araldite etc , lots of options a pic may help .

 

[fizzy]

tec 7 I would probably look at putting in dowels , maybe brass first , thread the dowels and glue them in , depending on the thickness you have to play with , or make up a mounting plate say 4 inches square and put a threaded stud into the middle , mount the stud plates to the frame , then glue the plates to the table top ,, again I like tec7 any other two pack glue would do , araldite etc , lots of options a pic may help .

Yes I would say the same.
Glues won't like highly polished.
Having said that strength won't be a major concern so maybe something like CT1 or similar if you have a large surface area to cover.

 

[the snooper]

Pu adhesive will do it no problem

 

[MysterG]

Does it really need gluing?

Most glass tops I've seen just sit on the frame with a few rubber/silicone dots to provide a bit of friction.

 

[Mark 2]

Thanks chaps,
Can't risk any drilling or tapping. The wood is irreplaceable and the client has some serious financial clout.
We've essentially replaced the steel legs with bronze ones.
The original fixing was some sort of sealant stuff which in all fairness took some getting off with multi tool. So something along those lines.

 

[MattF]

Does it really need gluing?

Most glass tops I've seen just sit on the frame with a few rubber/silicone dots to provide a bit of friction.

Possibly even just some blocks screwed or glued to the underneath, to sit within the metal frame & stop it moving, would be another option.

 

[pedrobedro]

The original fixing was some sort of sealant stuff which in all fairness took some getting off with multi tool. So something along those lines.

That sounds like PU adhesive (polyurethane) and is what I would use again.

 

[tom2207]

depending on how youve changed the style of the legs , again , all hard to guess without a picture .

 

[Mark 2]

From the underside.

 

[barracuda816]

Windscreen adhesive and primer?

 

[tom2207]

ah , plenty of area ... tec 7 or the likes will be grand

 

[Shiny Steve]

Maybe a gentle application of sika flex. That stuff seriously sticks.

P.s. would love to see a picture of it assembled.

 

[Mark 2]

P.s. would love to see a picture of it assembled.

Will do.

And thanks for all the recommendation folks.

 

[Mark 2]

Ok, had to look up what these were all about. So, the submerged wood absorbs minerals and also makes them incredibly heavy.
Price wise I really don't know.

 

[Migmac]

Ok, had to look up what these were all about. So, the submerged wood absorbs minerals and also makes them incredibly heavy.
Price wise I really don't know.

View attachment 331046 View attachment 331047

I like that. Anything I have stuck down with CT 1 has stayed put

 

[Shiny Steve]

That's quite something, the finish is like glass.

 

[bourbon]

Isn't that a type of Bog Oak? shout me down if I'm talking ********.

 

[Anguz]

Maybe a gentle application of sika flex. That stuff seriously sticks.

P.s. would love to see a picture of it assembled.

Poo to a blanket springs to mind

 

[Gareth J]

If it's 1000 yrs old and precious, I, personally, would find gluing unacceptable. To my mind the fixing has to be reversable and not cause damage during the reversal. Fitting screw mounts would be preferable to me but can understand not wanting to do that either. In which case, I'd be leaning towards creating a cradle/mount and holding it like you would a stone in a ring. Or something like that which can release the valuable bit without damage.