Resistant to attack from marine life and animal life. Will not crack or warp from temperature extremes as low as minus 20 degrees F. Meets or exceeds all Army Corps of Engineers and EPA requirements. Maximum buoyancy figures given are for total submersion of a Polyfloat in fresh water. One piece blow-molded construction provides maximum strength and long life. Exterior is blow-molded from high molecular weight polyethylene, the only molding process and material accepted for the manufacture of automotive fuel tanks.
Casing is filled with expanded closed cell polystyrene for permanent buoyancy.
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