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From: "Gary Rodgers" <grodgers@epix.net>
To: "Lancair List" <lancair.list@olsusa.com>
Subject: hanger heat
Date: Fri, 8 Feb 2002 09:45:32 -0500
Message-ID: <NCBBJDOIBFJELMGOIOJCMEJNDJAA.grodgers@epix.net>
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          <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>>
          <<  Lancair Builders' Mail List  >>
          <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> 
>>
>>My hangar here in Wisconsin is heated with two 125,000 BTU infrared gas
<SNIP>
Steve Myers LES N701SM 75%<<

Steve:
The most damaging UV wave lengths for resins/coatings fall in the <400
nanometer range.  Visible light is approximately in the range of 400 to 700
nm's. 800 nm's is the approximate start point of 'short' wave length for IR
heating, with long wave length being close to 1100 nm range.

These numbers are to be considered 'round' numbers, but the general point is
that I really don't think you need to be concerned.  I do some work using
specific UV wave length ranges for accelerated weathering testing as well as
actually using UV light sources to cure resin and coating systems.

Regards,

Gary Rodgers




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