From: br...@exemail.com.au
To: lace@arachne.com
Subject: Re: [lace] Old bobbins ... pewter
Date: Wed, 8 Apr 2009 19:04:42 -0700
Certainly David is correct about what pewter will last. The "better" the
pewter the shorter it will last if not kept correctly.
I will have to research the "catching" degradation from and poor pewter
bobbin. As it stands, I do not see how a poor pewter can infect an intact
pewter. My chemistry was never very good at the best of times! :)
I will have to think who to ask abut this.
----- Original Message -----
From: "Clay Blackwell" <clayblackw...@comcast.net>
To: "Brian Lemin" <br...@exemail.com.au>
Cc: <lace@arachne.com>
Sent: Tuesday, April 07, 2009 2:11 PM
Subject: Re: [lace] Old bobbins ... pewter
> Since writing to you about this, I remembered that the 'warning' I had
> in
> my head came from David Springett who said that rotten pewter was
> pewter
> which had too much tin in it, and that a bad bobbin could damage a good
> one.
> Clay
>
> Brian Lemin wrote:
>> Although pewter degradation is often talked of in "Human" terms, I am
>> pretty sure it is not catching! It is a chemical process that starts
>> when the pewter gets to certain temperature (I wrote an article about
>> it
>> many years ago but I have forgotten the details!... old age!)
>>
>> I do remember the story that says that Napoleons army uniforms had
>> pewter
>> buttons and when the went to Russia in the freezing conditions there,
>> the
>> buttons disintegrated.
>>
>>
>>
>>
>>
>>
>> ----- Original Message ----- From: "Clay Blackwell"
>> <clayblackw...@comcast.net>
>> To: "Brian Lemin" <br...@exemail.com.au>
>> Cc: <lace@arachne.com>
>> Sent: Monday, April 06, 2009 4:27 PM
>> Subject: Re: [lace] Old bobbins
>>
>>
>>> Brian, I've got the "warning" in my head that if we have a "rotten"
>>> pewter bobbin, we should always keep it separate from any other
>>> pewter
>>> bobbins as they can contaminate the good pewter. Thoughts?
>>>
>>> Clay
>>>
>>> Brian Lemin wrote:
>>>> The one warning that I would make is regarding bobbins that have
>>>> pewter
>>>> in them. They must not be kept in any place where they might get
>>>> very
>>>> cold. If they do this will accelerate the process of pewter
>>>> degradation.
>>>>
>>>> For other bobbins, keep out of direct sunlight.
>>>> Avoid damp
>>>> Even temperature
>>>>
>>>>
>>>
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