here is my little trick. I tried everything to get the glue off of my glass when i removed the tinting that the car came with. The glue was king of heavy and everything i used just smeared it. So i said what the hell and used acetone. Worked great. when i need to get any overspray, tape goo, or and other materials off my chrome or glass i just go to the dollar store and spend $1.00 on a bottle of fingernail polish remover. just do not use on painted or rubber material.