> From: David Kilpatrick <[EMAIL PROTECTED]>
> Reply-To: [EMAIL PROTECTED]
> Date: Sun, 22 Oct 2006 17:23:39 +0100
> To: "Roger E. Blumberg" <[EMAIL PROTECTED]>
> Cc: [EMAIL PROTECTED], [email protected]
> Subject: [CITTERN] Re: Andrade Portuguese guitarra
> 
> Roger E. Blumberg wrote:
> 
>> 
>> 
>>> From: Frank Nordberg <[EMAIL PROTECTED]>
>>> Reply-To: [EMAIL PROTECTED]
>>> Date: Sun, 22 Oct 2006 14:03:19 +0200
>>> To: [email protected]
>>> Subject: [CITTERN] Re: Andrade Portuguese guitarra
>>> 
>>> Roger E. Blumberg wrote:
>>>> Humor me if you would. Take a pin or needle, grab it with pliers,
>>>> Smell like burning plastic?

>> 
>>> Oh, we're definitely at a time long before plastic was invented. There's
>>> absolutely no doubt about that!

>> that's the point, we should be (pre-plastic).
>> So what material is Ron's bound with if not plastic? What material is so
>> bright white and pliable?


> Celluloid, used as a material for furniture and instrument binding from
> well before the 1890s. Coloured celluloid, various types of early
> setting resin materials, 'compo' plastics - the stuff used for Union
> cases, photo frames, cheap jewellery, fake jet, fake ivory, fake pearl etc.
> 
> Plastics are a 19th century invention. However, you would not want to
> poke a heated probe into a 19th century celluloid plastic instrument
> binding. They are highly unstable and can break into a semi-explosive
> flame, just the same way that early cine film (1890s) and photo rollfilm
> (ditto) on nitrocellulose bases can do. The gases which are the real
> danger with films (sealed in canisters, so nowhere to escape) are not a
> problem with instrument bindings but any artificial ivory of the 19th c
> needs treating with caution.
> 
> David


Well then I must apologize and stand corrected. Thanks for the education --
and the warning regarding it's flammable nature. I'll have to look for more
instances of pure solid bright-white celluloid binding on 19th century
instruments now. Somehow I don't think I'll find many though.

The binding was my first and biggest problem with the instrument's look in
the first place. I must say I'm still not convinced yet of it's age, but for
now you've knocked some of the wind out of my biggest red flag. We'll see.

Thanks
Roger





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