Dry Fast is an Open Cell (reticulated) foam which allows water to drain through quickly—
it doesn't stay wet! It is intended for both outdoor and indoor cushions where moisture retention can be a problem. This is not ordinary polyurethane foam. It is quite new and promises much drier boats. It is also formulated with an antibacterial agent.
Choose the 4" thick Dry Fast for sleeping (with a 35 lb compression resistance and a density of 1.8 lbs/cu.ft. this foam does not bottom out). The 70 lb, 2" thick Dry Fast makes for comfortable seating. (NOTE: As foam gets thicker it feels much firmer. A 70 lb, 4-inch thick piece would feel rock hard.)
Simply use and electric kitchen knife to trim the foam to size. Pieces can be glued together with Bostik Contact Adhesive to form larger pieces or to reduce waste. This foam is:
4" thick 72" long 48" wide