Examples of use of etching acid
1. However, for the past year, the graffitists have made a comeback using markers with etching acid to scar the windows.
2. He wants to tighten the laws even further, and recently introduced a bill that would require a license to buy etching acid.
3. The former prosecutor also won passage of a law that bars the possession or purchase of spray paint, broad–tipped indelible markers and etching acid by anyone under 21.