[GreenKeys] White Discoloration on Keys

[Lee Mushel]

Can't let this one go without comment.   Yes, casein is a dairy product and 
the "glue" is typically a little more complex.   For example, you can use 
casein-neoprene as a glue to hold paper and aluminum foil together.   And, 
to concur with another observation.   You take a little bit and put it in a 
foil weighing dish and put it in the back of someone's desk drawer.   The 
smell is, indeed, awful as the stuff "rots" and the poor devil whose desk it 
is in gets used to the smell and really can't find the source.   Yes, the 
"boys" did that to me long, long ago.   Like maybe 1965.  And a lot of 
pretty complex "glues" (we should call them adhesives) did come out of that 
lab in Philadelphia and Central Engineering.

73

Lee  K9WRU
----- Original Message ----- 
From: "Steve Schlink" <sschlink at mindspring.com>
To: "Chris Elmquist" <chrise at pobox.com>; "Pete Lancashire" 
<pete at petelancashire.com>
Cc: <GreenKeys at mailman.qth.net>
Sent: Friday, July 29, 2011 8:13 PM
Subject: Re: [GreenKeys] White Discoloration on Keys


> Nope. Casein is a glue.
>
> The plastic is Eastman Chemical's Tenite. Specifically it is Cellulosic
> Acetate Propionate.
> It's made (as the name implies) from wood pulp.
>
> They are a legacy company of the Dupont gunpowder industry.
>
> Steve
>
>
> At 04:34 PM 7/29/2011 -0500, Chris Elmquist wrote:
>>Isn't that stuff called casein?  It's made from milk...  and sometimes
>>(or, always) has the smell of bad cheese (or dirty socks).
>>
>>http://en.wikipedia.org/wiki/Casein
>>
>>--
>>Chris Elmquist
>
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