Only in German, unfortunately:
[url:27jcquqx]http://www.spiegel.de/wissenschaft/natur/0,1518,521395,00.html[/url]
[url:27jcquqx]http://www.dradio.de/dlf/sendungen/forschak/706368/[/url]
Go make a coffee, come back and see if these make any sense:
Translation 1
Translation 2
"The Romans mixed their all-purpose glue from bitumen, cattle tallow and bark pitch,... Possibly also still Ziegelmehl, soot or quartz sand as mineral additives were attached....“Even after 2000 years it sticks still. Which modern adhesive holds so long? “
That is interesting with the adhesive. I think that if I can find the components, I will give it a try.
I am an organic chemist and did specialize in materials so this would be an interesting experiment.
Paolo
Doc, we'll just stick around and wait for your results. Anything that will do the job they mention in the translations would be a welcome addition to most anybody's workbench!
Um, are you finished with the glue yet? :lol: :wink:
Ziegelmehl is fine ground tiles.
Bitumen is.... bitumen
Synonyms for Talg = tallow are in my dictionary: sebaceous, sebum, suet.
I am quite sure, that you know what a cow is. :wink:
So they rendered the cow fat somehow? I'm assuming "Suet" is fat...
Interesting- how does this compare with modern and medieval gilders size used to stick silver sheet?
Germans and Gauls are also credited with discovering a substance called sapo OR "SPUMA BATAVA), made of goat tallow and ashes, that they used to tint their hair red.
Tallow has many uses it would seem!
Quote:So they rendered the cow fat somehow? I'm assuming "Suet" is fat...
If its the same suet thats used in Suet Pudding,yes its fat.
- Someone on the archaeoforum argues that this was simply "Treibkitt" (molding cement), which was left in the silver sheet metal to fill the area between iron and silver, so that it couldn´t be deformed so easily.
- If it is actually glue, then it would help to solve the problem of helmet lining.
- I fact the composition of the material is VERY similar to moulding cement.
Quote:- Someone on the archaeoforum argues that this was simply "Treibkitt" (molding cement), which was left in the silver sheet metal to fill the area between iron and silver, so that it couldn´t be deformed so easily.
- If it is actually glue, then it would help to solve the problem of helmet lining.
- I fact the composition of the material is VERY similar to moulding cement.
That in itself is incredibly interesting. It makes the whole idea of intricate silver decoration a lot more reasonable to many here :wink: In fact, Anthony's Cold Weld techniques could be used to great effect - making the mouldings and applying silver sheet on top, perhaps?