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New acrylic sheet is black by day, white by night.


A bright idea in plastic signs is a new sheet that appears dark by day and, with a little backlighting back·light  
n.
A type of spotlight, used in photography, that illuminates a subject from behind.

tr.v. back·light·ed or back·lit , back·light·ing, back·lights
, glows white at night. Cyro Industries, Rockaway, N.J., developed Acrylite GP P95, a black/white acrylic sheet (Cyro color 1124-1) made from a special pigment formulation designed for 10-19% light transmittance when backlit An LCD screen that has its own light source from the back of the screen, making the background brighter and characters appear sharper.  but appearing dark and opaque without backlighting. The sheet is an addition to Cyro's cell-cast Acrylite GP line, so it offers the same performance and fabrication fabrication (fab´rikā´shn),
n the construction or making of a restoration.
 characteristics.

The amount of light transmission can be adjusted by varying the percentage of pigment in the sheet so that transmission is the same for all thicknesses. Neon, fluorescent, and incandescent light sources can be used for backlighting. However, the service temperature of the sheet cannot exceed 180 F and the light source should never touch the sheet.

Available in standard thicknesses of 1/8, 3/16, and 1/4 in., the new sheet has a matte side (called the P95 side), and a glossy side. The matte side is said to diffuse the backlighting to reduce glare.

Acrylite GP P95 can be thermoformed but only under carefully controlled conditions with very little draw. That's because the sheet's "sandblast sandblast, stream of sand or other abrasive particles driven by a jet of compressed air or water or by centrifugal force against a surface to clean or abrade it. " texture that imparts the black/white optical effect will be lost if the sheet is formed with a significant draw.

LETTER PERFECT

Marble Crafters U.S.A. of Trainer, Pa., a supplier of natural stone products, got two signs for one by using the new acrylic sheet to form the name of the company on its showroom, warehouse, and production facility. "The sign's dark letters complement the black glass and stand out against the building's white background in daylight, then are illuminated to a bright white that contrasts sharply with the darkness of night," says CEO (1) (Chief Executive Officer) The highest individual in command of an organization. Typically the president of the company, the CEO reports to the Chairman of the Board.  Robert Capoferri.

The letters for the sign were fabricated by Capitol Sign Systems, Lansdale, Pa. Each letter fabrication is 54 in. long and about 7.5 in. thick, constructed of 1/4-in. Acrylite GP P95 affixed af·fix  
tr.v. af·fixed, af·fix·ing, af·fix·es
1. To secure to something; attach: affix a label to a package.

2.
 to aluminum sides and backing. A neon tube Noun 1. neon tube - a lamp consisting of a small gas-discharge tube containing neon at low pressure; luminescence is produced by the action of currents at high frequencies that are wrapped a few turns around the tube
neon induction lamp, neon lamp
 and transformer are enclosed within the construction.
COPYRIGHT 1997 Gardner Publications, Inc.
No portion of this article can be reproduced without the express written permission from the copyright holder.
Copyright 1997, Gale Group. All rights reserved. Gale Group is a Thomson Corporation Company.

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Author:Knights, Mikell
Publication:Plastics Technology
Date:Aug 1, 1997
Words:346
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