Create etched patterns in glassware by placing adhesive patterns on the glass surface, applying etching cream on the pattern cutouts and allowing the cream to sit for at least 15 minutes before rinsing. Always wear gloves and work in a ventilated area when dealing with etching cream.
First, choose or make the pattern and stencils to use for the project. For instance, etch initials into the glassware using stencils or make a unique pattern using painter's tape. Make sure that the patterns or stencils are adhesive so that they stick easily to the glass and do not pull up during etching. Before applying the stencil, thoroughly clean the glassware and wipe it down with rubbing alcohol. Next, put on protective gloves and a long-sleeved shirt to protect your skin.
Place the stencils on the glassware, and smooth out any bubbles. Smooth the etching cream into the pattern or stencil cutouts in two directions using a paintbrush. Once the cream sits on the glass for at least 15 minutes or according to package instructions, rinse it off in a stainless steel sink, and clean the glass with soap and water. Line porcelain sinks with plastic before rinsing off the etching cream.