HOHN Dredging Pipelines Floats are molded as one piece from tough, impact resistant low/medium density polyethylene which will withstand sub zero temperatures. The floats will not rust or corrode and is resistant to most chemicals. A UV stabilizer is added to the polyethylene for excellent resistant to sunlight (UV). HOHN patented float design provides stability and reduced resistance to waves, currents, and winds. Additionally, all HOHN Floats flotation products are PU foam filled to United States Coast Guard(USCG) specifications.