Sign & Digital Graphics

November '17

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52 • November 2017 • S I G N & D I G I T A L G R A P H I C S WRAPS DIGITAL GRAPHICS Marcel Medved, business development director with Continental Graphix, offers an innovative solution that doesn't even require a heat gun for application, quite different than most other rough surface products. "Our panoRama Walk&Wall avoids the need for a heat gun, as it has a fabric backing and a high-tack, removable adhesive," he explains. "It can also be used on sidewalks and roads, as its textured surface is both wet-slip and dry-slip certified." Printability is key to these products and all can be printed with latex, eco-solvent, solvent or UV-curable inks, though cur- ing and outgassing the inks is definitely recommended to ensure optimal quality and performance. For longer-lasting jobs in areas with high UV or foot-traffic exposure, an overlaminate can also add durability, as well as improving the look with a little extra gloss if so desired. Hommes suggests installers do their homework before installing both as a two-part job, however. "Before using, be sure to understand the limitations of these laminates with (Envision) before applying to a surface that requires stretch over 150 percent," Hommes cautions. "Graphics are limited to their smallest stretch factor, be they ink, film or laminate, so don't exceed this limit or it can lead to premature graphic failure." Given the uneven and often dirt-prone nature of hard out- door surfaces, professionals will also need to take a little extra time for prep work, as that will definitely help with a more thorough and long-lasting installation. A broom and brush may be sufficient, but for areas with lots of dirt and grease, power- washing can also be helpful, Medved says. Plastic surfaces can be slightly roughened up to better accept the adhesive, and isopropyl alcohol can be used to remove stains or residue before installation. A little extra time on prep will also come in handy if you're later required to remove the wrap. "It's important to prep the surface to avoid any headaches with contaminants, especially moisture leaching out after the product has been installed," Bui says. "We strongly advise install- ers to prep the surface with a sealant or paint to ensure that no loose paint, grit, or chalk will be present." During the job, it is recommended that installers use a squee- gee for flat surfaces or a foam roller on textured surfaces, plus a heat gun to post-heat the film (in Arlon's case, up to 120 degrees F on flat surfaces and between 200 and 230 degrees F to mold it to textured surfaces). "One method we recommend for walls is tacking the film at the top of the substrate and working or squeegeeing downward and pulling the release liner as you go," Bui says. 3M products call for much higher heat in their application guidelines, Hommes adds. "We recommend a heat gun set at 1,000 degrees F to roll the graphic onto the surface, and to maintain a pace of three inches per second at that temperature," he says. "This will help ensure that the graphic properly conforms to the surface." As for proper alignment, Hommes has an additional tip. Wrapped with Arlon DPF 8000 by Candid Worldwide LLC.

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