I've been removing glue from our floor for two days. Do not fuss with expensive smelly chemicals. I've been using a 3 inch razor blade and scraping for hours. Buy tons of blades because they work best when replaced ever 15 to 20 minutes. Boiling water also seemed to help (use rubber gloves!) Buy knee pads and be prepared to put in some long hours. It stinks, but so far it is working. Good Luck!