Why not to use Glass for Underwater Windows

003-1 Foto vidrio piscina a reponer (6) The picture shows the two best reasons why not to use float glass for underwater windows:
  1. The window is supposed to be transparent. Instead it is green like a water bottle. Note that float glazing needs to be very thick to withstand the water pressure. The transparency of float glas is lower than that of acrylic glazing, giving the window a greenish color
  2. See the cracks on the bottom of the window? Float glas is not meant to be used under pressure. It is not flexible. It shatters. People might tell you that this is true for normal float glass, but not for their “special” float glass. From my long experience with pressurized glazing, this is not true.

This is why Hydrosight does not use float glass. Hydrosight uses cast Acrylic glazing.

Related Information: Technical Comparision of Glass and Acrylic


Categories: Technology of Glazing under Pressure, Underwater Window
Created: 12 March 2014
Last Modified: 18 March 2015

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Hydrosight Underwater Windows