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8th October 2009, 05:25 PM
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#1 |
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(deceased)
Join Date: Sep 2008
Location: Bavaria, Germany - the center of 15th and 16th century gunmaking
Posts: 4,310
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Hi Teodor,
I would suggest a ratio of tannin : water of 1 : 4. Sorry for not mentioning that. Best, Michael |
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8th October 2009, 08:35 PM
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#2 | |
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Member
Join Date: Dec 2004
Location: Bay Area
Posts: 1,660
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Quote:
You have been of tremendous help. Sorry for all of my questions, but me and my friend are new to this field, as our collections tend to be of mostly 19th century items. I was just wondering, for all the manipulations, should the seax be submerged blade down into the distilled water/tannin solution with the hilt left sticking out of the container, or is it safe to submerge the hilt as well? I am afraid disattaching blade and hilt is impossible. Thank you, Teodor |
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8th October 2009, 08:58 PM
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#3 |
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Member
Join Date: Jul 2005
Location: Tallahassee, FL
Posts: 131
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My understanding is that washing may be the best option, and that the tannin treatment really doesnt do anything.
For the last word, you may be interested in this book, recently published, pretty much the only book on conservation of iron/steel. http://www.amazon.com/Iron-Steel-Cor.../dp/1904982050 |
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9th October 2009, 01:02 PM
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#4 | |
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(deceased)
Join Date: Sep 2008
Location: Bavaria, Germany - the center of 15th and 16th century gunmaking
Posts: 4,310
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Quote:
Sorry to differ but in my 30 years of restoring experience, tannin has definitely proved to have a both cementing and tightening effect. Moreover it generates a very smooth and homogenous black surface. Nor more problems with material losses of excavated iron objects! You may ask any good museum restorer. Michael |
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9th October 2009, 03:01 PM
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#5 | |
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Member
Join Date: Jul 2005
Location: Tallahassee, FL
Posts: 131
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Quote:
Michael- I'm no expert, and I'm not trying to contradict you or your experience- just passing along info I gathered from Dr. David Scott, Chair of the UCLA/Getty Conservation Center, professor at UCLA, and author of the two most important metals conservation books to be published yet. Regarding the knife, does it appear the bone handle has been turned to shape? |
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9th October 2009, 04:47 PM
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#6 |
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Member
Join Date: Dec 2004
Location: Bay Area
Posts: 1,660
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Thank you everyone,
I will leave it up to my friend, but I do not see any reason why he should not try the tannin solution. I am not certain what "turned to shape" means. Regards, Teodor |
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10th October 2009, 03:13 PM
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#7 |
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Member
Join Date: Jul 2005
Location: Tallahassee, FL
Posts: 131
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I was just wondering if the bone handle was turned on a lathe
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9th October 2009, 01:04 PM
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#8 |
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(deceased)
Join Date: Sep 2008
Location: Bavaria, Germany - the center of 15th and 16th century gunmaking
Posts: 4,310
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Teodor,
Let the bone covered hilt stick out of the tannin solution, otherwise it will get blackened. Michael |
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9th October 2009, 02:31 PM
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#9 |
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Member
Join Date: Dec 2004
Posts: 1,247
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Re iron and tannin: Iron tannate is a very nice, fairly permanent black ink (it's the basis of that iron and oak gall medieval ink recipe).
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