Glossary
A glassy thermoplastic; can be cast and molded or used in coatings and
adhesives.
Source: WordNet ® 1.6, © 1997 Princeton University
This substrate is constructed of a corrugated plastic substrate faced with aluminum. It is a very rigid substrate but only half as thick as the conventional plywood based substrates. It is much lighter than the plywood based substrates as well. This sign base gives a very smooth lettering surface and is the best choice when weight is a concern.
A corrugated plastic material most often used for “yard” signs. 10 mil coroplast is the thick coroplast used for large coroplast signs because it is more rigid. 4 mil is the standard thickness commonly used for yard signs. Every politician's sign you've ever seen in someone's front yard is made of 4 mil coroplast.
Lexan polycarbonate is one of the most widely known "plastics". Lexan sheet with its unique combination of high impact strength, flame retardancy, and thermoformability makes it ideally suited for security applications. No other plastic can match Lexan's combination of light transmittance (clarity), and the ability to withstand extreme impact. Source: http://www.polymerplastics.com/transparents_lexan.shtml.
A marine grade quality, medium density overlay plywood product.
This substrate is constructed of a plywood base, faced with aluminum. The aluminum facings give a smoother overall appearance to the sign. This substrate is intended for long term outdoor life, and it is available in single or double sided varieties. Resilience is limited only by the lifetime of the chosen vinyl.
Poly-Vinyl-Chloride. A common thermoplastic resin, used in a wide variety
of manufactured products, including signs, rainwear, garden hoses, phonograph
records, and floor tiles.
Source: The American Heritage® Dictionary of the English
Language, Fourth Edition
Copyright © 2000 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
Substrate
Any material used as a base of a sign.
