Safety Glass: Weatherability and Durability Testing for DuPont™ SentryGlas®

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*******www2.dupont****/SafetyGlass/en_US/index.html?scr=metacafe_dupont_sentry_05 DuPont is one of ...
*******www2.dupont****/SafetyGlass/en_US/index.html?scr=metacafe_dupont_sentry_05 DuPont is one of the leading suppliers of glass laminating products and services in the world. Not only does DuPont™ SentryGlas® have an interlayer that’s many times stronger and stiffer than conventional interlayers, but it is also proven, through a series of weatherability and durability testing, to withstand extreme natural and man-made conditions. Stephen Bennison, Senior Technical Associate DuPont™ SentryGlas®: There’s a tremendous amount of weathering and durability testing. , in fact, even before the products can be released on the marketplace, they have to go through basic weathering and durability tests, because, , these products have to survive for the lifetime of the building. And, the … the lifetime of a building is much longer than the lifetime of a car. So, , there’s, again, enhanced requirements around weathering and durability, which of course, we had to take into account when we designed the century glass. So we do a lot of natural weathering. We make laminates and put them out, , in the fields of Florida, where they get a lot of sunlight and humidity and salt air. We take, , laminates and we put them in Arizona, and use concentrated, , sunlight from mirrors to actually accelerate, , the weathering process. So there, it’s hot and dry, and you can simulate about a year’s worth of weathering in one month, , there. ‘Cause, … we have to do accelerated weathering, otherwise it would take forever to develop products. Um, we also recently got some, , certifications for use of the products in Russia, where they were tested, , to very low temperatures, of … , to … to deal with the climates, , in Russia. So, testing down to minus 60 degrees centigrade, , and to the … and … , under the Russian, , kind of applications. So, we do a whole barrage of weathering and durability tests to make sure, , there’s very little change in the properties, both the optical properties and the, , mechanical properties. So, you know, a … an engineer, then, can feel confident, when they do a design, that it’s going to last. And, … and last the lifetime of the building. In some of the emerging markets, um, they have different needs, , to the U.S. , a good example is the Middle East. Um, century glass has been specified for several m … major projects now, in, … in… in the, … in the Gulf, , region. And one of the … key reasons it’s been specified in the … in the Middle East is, … because of the requirements of very high temperatures, , associated with buildings in, , Abu Dhabi, and … and places like that. So, it’s another area where PVB tends to be challenged, , at the higher temperatures, to … to get the right kind of pe … , performance. Um … so, , a … the century glass was designed to work at higher temperatures and elevated temperatures. So we’re starting to see, , designers in those r … , regions, um … now start to select the product because of the knowledge they can … they can get performance, , at higher temperatures. So, that … that’s one … one example. Now, the nature of the industry is it’s global anyway, so you have an architect literally down the street from here, designing a building in Abu Dhabi. So, they tend to be in… takin’ the knowledge and the knowledge of the materials, and then, , driving the use of those in… in, , the emerging markets, as I say, such as … such as the Middle East. India’s another good example. That’s a … a market which has, … really just started to implement, , safety glass requirements in their construction, , industry. So, it’s, … , as the … , as the sort of, , high-end construction industry sta … starts to grow, in a … in a country like, , India, , they’re recognizing their need to have higher performance, , glass, safety performance. And again, … you know, a city like Mumbai has high temperatures, a lot of salt air, requires good durability and higher temperature performance. Um … so, we’re starting to see projects come, , in, , in… in countries like India, and it’s, … it’s starting from a very small base, but, , growing extremely rapidly. So, you know, we’ve expanded our teams there, to promote the product and get the right information and materials to the people, … in the industry.
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