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Glossary of Terms

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O

Off-premise sign: A sign that is not located on the property to which it relates. A billboard is an example of an off-premise sign. (See also on-premise sign.)
Oil canning: Refers to the uneven deflection in a metal surface due to insufficient thickness of the material or inadequate support behind it.
On-premise sign: Any sign that is located on the business or property to which it relates. (See also off-premise sign.)
Opaque: Describes any material or substance through which light does not pass, i.e. it is neither transparent nor translucent.
Open channel letter: A channel letter with returns that project forward from face of letter such that the neon tubing is visible.
Outgas:  The release of gases trapped within a solid substance which typically occurs during the drying process. Outgassing can occur in some plastics and paints if they have not fully dried, resulting in adhesive failure to anything applied over them.
Overlaminate:  An adhesive transparent vinyl material that is applied over a printed image to protect it from abrasion and the elements.