Glass etching is the application of lettering, monograms or designs on glass. this little known business can be started in a garage or shop and work into something really lucrative. Glass etching is accomplished by covering the glass with a pattern, then, with the aid of a special machine, blowing “sand” against the surface.
Wherever the glass is not protected, it becomes “etched” as the sand repeatedly strikes and “pits” the surface. This procedure contrasts with the old metal etching techniques where the surface was covered with wax or resin, a design scratched into it and the material immersed into acid.