This work was done on clear, tempered 60 x 120 x 1 in.3 (1.52 x 3.05 m2 x 25.4 mm) insulating-glazing units to determine the durability of the secondary and primary seals through the ASTM E2190-10  and ASTM E2188-10  testing protocol. The data generated targeted a specific sized unit, a specific spacer system design, and a specific aspect ratio. It is unknown if this data applies to every case of IG size, glass make-up, and spacer system, and it is unlikely that it does. Before a project is undertaken mimicking this type of cold-bending, this testing should be repeated using actual sizes and anticipated bending dimensions. This is the first data generated on this topic of durability with coldbending, and is likely just the beginning of many research projects on this topic. Cold-bending of IGUs is easiest when the units are attached to the glazing frame using structural silicone. It may be specified that cold-bent IGUs are to be used in a mechanically attached curtain-wall system, but the structural silicone used to attach an IGU to a frame is a combination adhesive and sealant, retarding air and water infiltration. Mechanically held cold-bent IGUs may put undue
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stresses on gasket systems that result in unwanted air and water infiltration. Because of the likeliness of structural silicone attachment of cold-bent glass the durability testing was done to the ASTM E2190-10 protocol, which uses a UV cycle in the test. This protocol is not the same as the EN1279 Glass In Building – Insulating Glass Units  protocol used in Europe. It is unknown if the two protocols produce similar results.