Hibco Plastics, Inc..
STYROFOAM® BB
1.8 pounds per cubic ft. extruded Polystyrene foam buoyancy billets for marine floating structures. Standard color is blue. Styrofoam BB brand plastic foam buoyancy billets are one of the best materials to use for floating structures. This extremely buoyant yet durable material is composed of millions of tiny non-interconnecting air cells, each serving as an independent buoyancy chamber. These buoyancy billets won't lose their buoyancy, even if punctured. The lightweight of Styrofoam brand plastic foam reduces the racking on the wooden framework of a floating structure, and helps minimize damage from storms. They do not water log or corrode. They resist the attack of destructive marine growths and are unaffected by salt or fresh water.
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Hibco Plastics, Inc.....