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Date: Fri, 10 May 96 10:08:13 EST
From: "Andrew Cohen" <Andrew_Cohen@cc*.ss*.nm*.go*>
To: techdiver@terra.net, m-4819@ma*.sw*.se* (Sigmund Lundgren)
Subject: Re: Undergarments

     Cotton does not retain heat when wet.  This is important with a 
     UNISUIT, which typically leaks water through the exhaust valve when 
     the suit is deflated.
     
     Are they looking for cotton because it doesn't melt in a fire like 
     polypropylene? 
     
     I have 2 suggestions for thin undergarments suitable for firefighters' 
     undergarments:
     
     1. a nomex jumpsuit of either the firefighters' or aviator's style. 
     Doesn't provide much insulation, but it's thin, comfortable and 
     doesn't soak up much water.
     2. Wool, which retains heat when wet, doesn't melt when heated, and 
     won't support a flame.
     
     Wildland fire fighters wear wool for warmth and nomex for protection.  
     They call cotton "killer cotton" because once it's wet they have to 
     think about becoming hypothermic.
     Andy Cohen


______________________________ Reply Separator _________________________________
     
Anybody know about 100% cotton undergarments (one piece). The Swedish fire 
brigade has asked about such a thing but it seems hard to find... They use 
the Poseidon Unisuit and want a thin undergarment.
     
Sigmund

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