PPG’s Solarban 72 Starphire low-E glass offers solar control, high visible light transmittance (VLT), and clarity. Solarban 72 Starphire offers VLT similar to Solarban 60 Starphire glass with 25% better solar control. Solarban 72 Starphire also has solar control characteristics approximating those of Solarban 70XL but transmits 11% more light. To maximize clarity, the low-iron glass features insulating units with one uncoated Starphire glass lite and one triple-silver coating lite (engineered specifically for a Starphire substrate). ppgideascapes.com