A type of solar control glazing the reflects solar radiation while allowing most visible light to pass. Reflective glasses were first introduced in the 1960s. The coating is a hard thin, mirror-like metallic layer that is pyrolytically applied to the glass. Reflective glasses are different from the newer Low-E glass, in that they reflect some visible light and thus are not visually clear. Reflective glasses typically have IR Shading Coefficients from 0.46 - 0.65 (where 1.0 is complete transmission).