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Originally Posted by RhysMichael
. Some sources ('Persian arms and Armor'-Museum Malbrook ISBN 83-86206-31-4 Plate 38,39) talk about molten alum was poured in first then a plug of pine rosin was added to waterproof the assembly. I don't know the temperature that alum melts at
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....The melting point of alum is 92.5oC.... I do not know whether the fumes produced are harmful or not....so I would advise caution.....just in case
