Fletch,A 10 gallon pail kit (5 gallons of A and 5 gallons of B) will make around 40 cubic feet of foam when mixed. This is more than enough for all your stringers and tank foaming. The equivalent amount of liquid 8 lb pour foam will make about 1/4 of the foam by volume as the 2 lb foam. Basically, 2 lb foam displaces 2 lb per cubic foot where 8 lb foam displaces 8 lb per cubic foot. Air has 62.4 lbs of floatation per cubic ft, so 2 lb foam would provide around 60 lbs per cubic foot while 8 lb would provide around 54. If you are reinforcing the stringers with tapes and then glassing over them, then 2 lb should be fine. 8 lb is really dense foam. To put it in perspective, divinicell (40lb) is roughly equivalent to 4 lb pour foam. Start with 2 quart pots and a gallon bucket. Mark one of the quart buckets A and the other B. You will keep reusing these as you remix. Stir very well until the swirls between the 2 colors are gone and the mix looks like cream heavy coffee. Not mixing well enough results in an odd air bubble heavy hard caramel colored foam. You want it tannish with very tight air bubbles. Don't worry about cleaning up the pour foam if it overflows or you spill until it has kicked. Drips and blobs pop off with a putty knife. The overflowing top cuts very easily with a handheld wood saw once kicked.
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Topic: Fletch's 1976 170 Rebuild (Read 22683 times)
