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Message: <blockquote data-quote="nlb34" data-source="post: 500454" data-attributes="member: 33489">I was a concerned about the floatation foam being 60+ years old which lead me to opening up the seats.  Under each seat was a sold chunk of foam that pulled right out, maybe pre-molded and dropped in or maybe shrank over time.  For others with these boats it would appear that the foam was still sound.  I did not try a soak test but the foam was solid and not crumbly, also it was several inches off the bottom which would have keep it from sitting in water over the winter.  Lots of reading here and elsewhere about mixing two part foam vs using foam insulation.  Lots of videos showing boats with water logged flotation foam suggesting that over time pour in foam degrades, others suggested the make-up has changed and the new foam is better, all said it was easier to cut up foam insulation, also the seats were exactly 10" wide which fit 5 pieces of 2" foam perfect.  Rough math says I have 475lbs of flotation which will cover the boat, engine, and 100+lbs of gear.<img src="https://i.imgur.com/QeFu0Bc.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></blockquote>