Volume 34, Number 12, December 1999

Masses of Glasses
        Glass Manufacturers Launch a Bevy of New Products   

by Tara Taffera

It’s been the subject of many articles, presentations and speeches in recent months: how to shorten lead times for glass customers. Recognizing this growing need, manufacturers of some of the many glass products introduced recently, boast of shorter lead times for these products. But, whether its shorter lead times, improved solar control properties, or advanced durability, the following products introduced by PPG, Guardian, Interpane and Pilkington LOF offer new opportunities for a myriad of glass purchasers.

Sun-Guard® by Guardian Industries
Guardian Industries of Auburn Hills, MI, has introduced the latest addition to its Sun-Guard® series. So, what makes this new product different from others in the series, or from that offered by other manufacturers? According to the company, Sun-Guard Silver is unique because it offers the performance, color uniformity and quality characteristics of a sputter-coated glass product, along with the durability and flexibility comparable to pyrolitic coated glass products. For example, Guardian says Sun-Guard Silver can be tempered, heat strengthened or bent after the coating has been applied to the glass.
Sun-Guard products are manufactured utilizing Guardian’s proprietary Silacoat™ process. According to Guardian, this attribute makes Sun-Guard appealing to fabricators with in-house tempering equipment. Additionally, the ability to fabricate Sun-Guard products after coating can substantially reduce lead times required for shipment.
Sun-Guard Silver is available on clear and green glass and according to the company, offers strong solar performance and a crisp, silver reflective look.

Thermopane INE IPLUS by Interpane Glass
While Guardian’s new glass offers benefits desirable to fabricators, Interpane Glass Company recently introduced its Thermopane INE IPLUS neutral low-E glass, which it says offers great benefits to architects and designers. The company, based in Clinton, NC, says the new product, a coated spectrally-selective glazing, offers this group something Interpane says they’ve never had before—the benefits of natural daylight, along with the advantages of energy-efficient glass.
Introduction of INE IPLUS was based on “the popular trend for clear glass in building design,” said Mike Winkler, Interpane’s director of sales and marketing. “Until now, the only true clear glass was uncoated—and this meant high energy consumption and discomfort for building occupants.”
According to Winkler, INE IPLUS features a neutral color that most closely matches the aesthetics of clear glass. “It does not have the obtrusive color tint of other so-called ‘clear’ spectrally-selective glasses. Therefore, it allows for high daylight transmittance and a beautiful, clear view,” he said. In addition, he said the double-layer coating technology can significantly reduce the need for interior lighting.
INE IPLUS is also available as a coating on the various tinted glass substrates.

Sungate Series by PPG Industries
PPG Industries of Pittsburgh is busy with its own glass developments. At the interGLASSmetal/Fenestration world ’99 conference in Atlanta, Richard Leggett, vice president, flat glass, made several significant announcements. Among them was the declaration that PPG will resume production of Starphire ultra-clear flat glass in January. The glass, which will be manufactured at the Carlisle, PA glass plant, will be available in thicknesses from 2.5 to 12 mm.
The company also announced the resurrection of its Solarban glass brand for a new category of solar control low-E glass being branched off from PPG’s Sungate low-E glass.
Sungate 100 and Sungate 500 glass have “the ideal characteristics for residential applications in northern climates,” said Leggett. “New Solarban solar-control low-E glass will provide distinctive low solar energy transmittance as well as low-E performance, qualities important in commercial glazing and many residential applications.”
So will there be a difference between the new and old Solarban products? According to Leggett, the new Solarban glass will differ from the previous in appearance and performance. The new Solarban low-E glass will be more color neutral, allow more visible light transmittance, have improved insulating properties and possess less visible reflectivity.
Sungate 1000 glass now becomes Solarban 60 glass with the same solar control and light transmittance properties. And that’s not all the news involving Solarban. Leggett says PPG will launch Solarban 55 glass in the first quarter of 2000 at its Mount Zion, IL, plant. The glass will have a pyrolitic low-E coating, and will meet Energy Star® standards in southern climates.
If that’s not enough, PPG also recently introduced its newest solar control glass substrate, Optigray® 23, a medium gray glass with a warm bronze undertone. According to PPG, the gray glass is an excellent option for those searching for a transitional product between gray to bronze hues.

Solar E by Pilkington LOF
Pilkington LOF of Toledo, OH, has been busy with new product introductions as well. The company recently introduced what it says is “the first color-neutral solar control glass with a pyrolitic surface,” Pilkington Solar E® Solar Control low-E Glass.
Designed for the architectural and residential markets, Pilkington says Solar E combines favorable solar control properties with excellent thermal characteristics in a color-neutral, durable, pyrolitic low-E glass. Additionally, with Solar E, the company says there is no color shift in tempering, unlike some sputter-coated low-E products.
“Solar E Glass opens up new opportunities not only for Pilkington LOF but for the design and glass industry as well,” said David Morris, manager of architectural products for Pilkington. “Glazing contractors who work in the South or have projects that call for a color-neutral solar control glass now have a product that offers shorter lead times. Before now, the only option was sputter-coated glass, which are not always readily available and typically require special
handling.”
The ideal customers for Solar E glass? Morris pinpoints it to retail and automotive dealer storefronts, federal buildings, libraries, high schools and colleges/universities. But, any building that uses a large amount of clear glass and needs to control solar energy transmission, may be an ideal candidate for the product.
While not a new product, Pilkington also recently introduced its Profilit™ Profiled Glass Architecture system into the U.S. market. Although Profilit has never formally been promoted in the United States, it has been used for large glass facades and interior glass walls in Europe for more than 30 years. According to Pilkington, Profilit offers a high degree of design flexibility and is an excellent alternative to glass block.
The Profilit glass system is a structural glazing system consisting of self supporting glass channels when combined with an extruded metal perimeter frame. The elongated U-shaped glass configuration provides an inherent strength within each glass channel that guards against lateral loading. This design allows the system to be installed in high elevations or in large unit lengths without requiring additional vertical or horizontal mullions. The system is available with several glazing options, including single or double-glazed, low-E coating and wire glass.
Profilit Glass is marketed in the United States by Pilkington LOF, but engineering, distribution, installation and onsite technical support is provided by Westcrowns Inc., an affiliated company of Westcrowns Ltd., Glasgow, Scotland.  

Tara Taffera is the editor of USGlass magazine.

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