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Backing Films & Materials Backing Films & Materials Drytac believes a quality image deserves the very best “support”. With this in mind, we have developed a range of quality products, from pressure-sensitive (Protac) and thermal (MHL) to heat-set (MediaShield) backing films. The line includes everything from heavy-duty materials for extra rigidity to specialty linen cloth backers. When choosing a backing material, consider the following criteria: THICKNESS: Determine the maximum total graphic thickness the display hardware or graphic holder can accept. RIGIDITY: This attribute is determined not only by the thickness but also the type of base material. For example, a 10.0 mil polycarbonate will be more rigid than a 10.0 mil PVC (vinyl). This is especially important when graphics will be rolled for transport. WEIGHT: This factor is related to the first two criteria, but is not the same. Some materials may be the correct thickness and stiffness, yet are not suitable because they are too heavy. Excess weight especially affects performance and stability of graphics on banner stands or pop-up booths. COLOR: A backing material is usually visible only from the back of the graphic. However, black or other white borders can be created by encapsulating an image with a specialized backing material and trimming it accordingly. ADHESIVE: It is important to consider the type of adhesive component when choosing a backing material. For example: HeatSet (heat-activated) adhesives cure very quickly, enabling you to roll images immediately, while pressure-sensitive adhesives have a longer curing time during which graphics should be stored flat. Also, some aqueous based adhesives may not be suitable for outdoor use. OPACITY: For graphics installed against a metal frame (pop-up booth) choose higher opacity backing materials to eliminate show through. |
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