To temporarily fix a water leak problem at the window seams, I had put a towel and used an adhesive tape to hold the towel in place. This is so that after the rain had stopped, I could recaulk the outside which I did. However when I removed the tape, it left a glue stain on the window. This tape is one of those which has nylon threads inside it. Bad decision but could not find anything else in the state of emergency.
Anyway tried acetone and alcohol. The glue did not dissolve.
Is there another glue removing solvent I could use before scraping it off the window which I am afraid could leave scratches.