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There are three hardeners that I know of in the Jeffco system.  The hardener supplied by Lancair is 3102, and is a fast hardener resulting in the shortest pot life.  A slower hardener is 3176.  It is available for Aircraft Spruce, but is was not approved by Lancair when I was ordering my Lancair IV last year.  The alternative hardener that is approved by Lancair is 3156, and is available from Lancair.  I have been using it in west central Florida, and have been getting a pot life of thirty minutes plus.  On the aircraft voltage question, I too went through all the arguments over 12 or 24 volt systems.  I have owned two Cessnas.  One had a 12 volt system and the other a 24 volt system.  I have had better performance from the 24 volt system.  The thing that tipped the scales once and for all to 24 volts for my IV was when I discovered that the new line of avionics were for 24 volts only. Since I like my toys, the choice was obvious. Harris Sullivan (building since 1/3/00)
Port Richey, Fl

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