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Blast-resistant window film was credited for saving many lives during the September 2001 terrorist attack on the Pentagon. In the event of a nearby explosion, a building's Achilles heel is typically its glazed surfaces. Shattered into razor sharp fragments and propelled at high speeds, window and door glass can cause severe injury to a building's occupants. In addition, shattered glazing allows blast over-pressure to enter the building. This, too, poses a serious threat to the safety of those inside and outside.
Extensive testing has proven that the threat of injury due to flying glass can be greatly reduced by the use of 3M Ultra Safety & Security Window Films. These tough, transparent, blast-resistant films consist of multiple, microthin polyester layers that work to hold shattered glazing together. Consequently, there are fewer fragments and debris capable of inflicting harm.
3M Ultra Safety & Security films greatly enhance the protective capability of glass in a very unobtrusive manner. These thin, pliable films can be applied quickly and easily over existing windows. Over the course of many years, they maintain a high level of optical clarity, even during extreme conditions. Unlike thick, single-layered films that tend to be stiff and boardy, 3M SUltra Safety & Security films use microthin, cross-woven layers that are laminated together to enhance tensile strength and elongation. This patented film construction delivers superior performance over standard polyester in blast and impact mitigation due to its ability to absorb shock. (Click here to learn why thickness is no substitute for technology.)
Additional blast protection is offered through the use of an attachment system. An attachment system helps to prevent the entire glass pane from being blown out of the window frame. 3M's Ultraflex attachment system is a structural silicone that bonds the film to the glass to the frame. (Click here to learn more about attachment systems.)
3M Security Window Films were tested by an independent agency and achieved a Very High protection level and a Condition 2 on the GSA rating scale when tested with a standoff distance of 121 feet and a peak pressure of 9 psi. (Click here to learn more about blast protection standards and testing results.)3M Security films’ tough, transparent, multiple, microthin polyester layers work to hold shattered glass in place. Consequently, potential burglars are deterred from attempting access through a window that is difficult to break. Clear security films are the perfect solution to a retailer or homeowner seeking protection without sacrificing visibility.
3M Security Window Films are maintenance-free, vary in thickness (from 1.5 mils to 14 mils*), and provide some of the energy benefits associated with sun control films.*1 mil = .001 inches
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