Illustrated advertising display for Styrofoam Buoyancy Billets, manufactured by the Dow Chemical Company. The advertisement features swimmers perched on a dock held afloat by the billets, emphasizing the buoyant and lightweight properties of the material.
Invented in 1941 by researchers in Dow's Chemical Physics Lab, "Styrofoam" properly refers to the Dow Chemical Company’s trademarked brand of closed-cell extruded polystyrene foam commonly used for thermal insulation and craft applications.
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“Advertisement for Styrofoam Buoyancy Billets,” 1963. Dow Chemical Company Historical Image Collection, Box 4, Folder Products--Styrofoam--Misc. Uses. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/1c18df80p.
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