Glass very dark gray colored soda-lime

1996 
This invention relates to a soda-lime glass colored very dark gray. This glass contains as coloring elements iron, cobalt and selenium in the following proportions (expressed in weight percent of glass in the form indicated): Fe 2 O 3 from 1.00 to 1, 65%, Co 0.017 0.030% and Se of 0.001 to 0.010%. The glass has a light transmission, measured for a 4 mm glass thickness with illuminant A (TLA4) of less than 20% and a total energy transmission, measured for a 4 mm glass thickness (TE4) of less than 20% . This glass is particularly suitable sunroofs for vehicles.
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