ULTRA BOARD is a lightweight structural panel consisting of a rigid polystyrene foam core faced on both sides by a smooth, moisture resistant sheet of solid polystyrene. The foam and facers are permanently bonded together. The face laminates have been specially developed to provide an excellent surface for painting, silk screening, photo mounting and vinyl lay up. Together with these properties and the ease and multitude of shaping methods make ULTRA BOARD an excellent choice for signage, photo mounting, exhibits, point of purchase displays and routed letters.
Not intended for exterior applications.
Under most conditions ULTRA BOARD panels will not warp; however, they may bow under certain conditions. Potential for bowing is much greater in thinner panels and in full 4 ft. x 8 ft. unsupported panels or on panels that are treated differently on one side than on the other, e.i., coating panels on only one side or exposing one side of the panel to a higher heat source than the other.
ULTRA BOARD panels are manufactured and packaged flat; occasionally, however, a panel may tend to bow after unpacking. These panels should and can be corrected by inverting the panel on a flat surface and allowing it to remain inverted (1-24 hours) until the warping has dissipated. To insure maximum flatness, full wood frames edge glued to the perimeters of the panel should be sufficient. Extruded aluminum channels or wood frames to fit panel edges also work well. For extremely critical applications, a thicker ULTRA BOARD panel should be used. For panels where coatings cover 50% or more of the surface area, it is advisable to similarly coat the opposite side.
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