Cellular Melamine. The "foam" alternative: a white foam-like product that has become popular as a substrate for acoustical panels. Cellular Melamine should not be confused with polyurethane foam, which is restricted in use by fire codes. When selecting fabric cover colors, keep in mind that cellular Melamine is very white and will affect the perceived fabric color. It also conforms easily to curves, with the ability to bend around curved surfaces without the need to "score" the back surface. Panels with images. Custom or stock images printed on acoustically transparent fabric. Recent improvements in computer printing and acoustically transparent fabrics allow hi-resolution photographs to be used in addition to artwork and graphics printed by conventional means.
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Stretch wall. Raw acoustical panels are mounted to the wall, then fabric is stretched over the panels. These custom on-site installations are useful for covering contoured or irregular surfaces.
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Full-, half- and quarter-round. A flat panel made to conform to a curve. By creating a trapped air cavity of varied depth behind a one-inch panel, absorption is extended well into the bass frequencies. One manufacturer patented a device that is tunable by the addition of a membrane over half of the surface. These devices are useful where low frequency energy is a problem and panels four-inches thick or greater are impractical.
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- Substrate and Fabric Choices.
- The basic fiberglass board comes from three suppliers of insulation. Board may vary in density between six and seven pounds per cubic foot and in color: pink, yellow or marbled. Fiberglass density may affect stability of the panels.