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Industry Innovations:
PPG Introduces Optigray® and Solarban® z75 Glasses

One is a new super-neutral tint with a classic PPG name. The other is a proven international success that is now launching in North America. Together, Optigray and Solarban z75 glasses represent the two newest additions to PPG’s ever-expanding collection of high-performance tinted and solar control, low-e glasses.

Optigray Ultra-Neutral, Light-Gray Glass
The Optigray glass name may be familiar to many architects, engineers and glazing professionals, but the new product it represents is bringing a distinctly different aesthetic to the world of architectural glass.

With its warm-light-gray tint, Optigray glass is formulated to eliminate the light-green color that is naturally present in conventional clear glasses, producing a highly transparent, super-neutral glass that can actually show less color than clear glass.

Optigray glass also delivers exceptional performance because it is engineered to function as a substrate for solar control, low-e coatings on Solarban 60, Solarban 70XL, Solarban 67 and Solarban R100 glasses. When Optigray glass is paired with Solarban glasses in a standard 1-inch insulating glass unit, the resulting configurations can produce visible light transmittance (VLT) of up to 50 percent and solar heat gain coefficients (SHGCs) of as low as 0.24.

As part of PPG’s wide range of tinted float glasses, Optigray glass features an appearance that is considerably lighter and more subtle than that of Solargray® and Graylite® II glasses.

Solarban z75 Solar Control, Low-E Glass
PPG also recently debuted Solarban z75 glass in North America. Featuring a neutral, cool-gray tint that is similar to popular Solarban z50 glass by PPG, Solarban z75 glass offers architects and building owners an appealing mix of daylighting, solar control and glare control.

As the table below demonstrates, these two products provide a range of solar control performance options that can be fine-tuned to specific climates or building codes:
 

Product* VLT Exterior Reflectance Winter U-Value SHGC LSG Ratio
Solarban z75 glass (2) + Clear 48% 9% 0.28 0.24 2.00
Solarban z50 glass (2) + Clear 51% 8% 0.29 0.32 1.59

  
The low reflectance rate for both products also enables them to harmonize well with other building materials, and with color-neutral, solar control, low-e coated products such as Solarban 67, Solarban 70XL and Solarban R100 glasses.

Solarban z75 and Solarban z50 Glasses Promote Sustainable Building
The center-of-glass insulating performance of Solarban z75 glass enables most glazing designs to meet 2014 California Title 24 energy standards when used as part of a well-designed and constructed glazing system.

In addition, Solarban z75 and Solarban z50 glasses can contribute to achieving credit under LEED® v4 (and earlier versions) in the categories of Energy and Atmosphere (EA), Materials and Resources (MR), Indoor Environmental Quality (IEQ) and Innovation in Design (IN).

Solarban z75, Solarban z50 and Optigray glasses also are recognized by the Cradle to Cradle Certified ProgramCM, joining numerous other PPG architectural glass products. PPG offers more C2C-certified architectural glass than any other float glass manufacturer.

For more information about Optigray, Solarban z75 and Solarban z50 glasses, call 1-888-PPG-IDEA (774-4332) or visit www.ppgideascapes.com.


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