Isn't hide glue water soluble? That's why they use is on violins and the like - you an "undo" the entire instrument with moist heat.
I note the Axminster liberon pearl glue is identified as interior use only (as is titebond) - I would question the water resistance.
Use cascamite. It IS fairly wet proof. Not totally though.
I think the standard aircraft glue was Aerolite 306..a urea formaldehyde type glue IIRC.
You painted one bit of wood with formic acid and the other with something made out of a powder paste. Set rock hard.
Theser glues were almost totally replaced by PVA and epoxy/synthetic resins repsectively..for non waterproof/waterproof applications.
Now I am prepared to admit that the acoustic properties of modern glues may be subtly different, but as far as structural properties go, the old 'natural' glues were more or less *rubbish*.
He wanted to keep it 'authentic' though. If that's not an issue then bog-standard Araldite is the stuff to go for in this instance.
Regards,
Hmm. I haven't used bog standard araldite for years. Never got a good join without using an oven to set it.
Authentic glues would have been calves foot probably..maybe shellac and alcohol..'knotting' or 'stopper' would be the easiest way to get that.
Thats not even hugely waterproof either..traditional waterproofing was wax or tar, neither of which are supremely good adhesives.
I've never had any problems with it - I usually warm the mix before application, particularly if I've added a pigment. I avoid the 'rapid' version though.
In this instance the authentic glue is Pine Pitch - it's an American 'split bore' flute. They were obviously prone to coming apart, as original examples are often bound with hide ties.
Regards,
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