I use this all the time for glass etching. I etch mirrors, pyrex dishes, pitchers, water bottles, trifle bowls, etc. as gifts. I apply it with a paint brush to make it go further. I love this stuff. Just make sure you use a quality indoor vinyl, not the cheap stuff from a craft store. The cheaper vinyl doesn't adhere as well and the cream will ooze its way underneath it. Also make sure you remove all air bubbles to get a clear, sharp design.