The etching process creates plaques with 2 levels of graphics: recessed and raised. Etched plaques are ideal for reproducing images with fine detail and small lettering. ADA compliant graphics can be created through deep-etching metal plaques.
The depth achievable by acid-etching is dependant upon the letter styles or artwork being etched, as well as the size of the etched plaque. Standard etching depths may range from .007 to .020″ depending upon size and detail of the artwork and the material selected.