It depends a great deal on what type of glue you are dealing with. Most glues are best removed by scraping them off with a razor blade - the same way you remove paint. Some glues can be softened by applying an appropriate solvent such as acetone or toluene which then makes the glue easier to remove. Some glues can be softened by CAREFUL application of heat such as from a blow dryer or heat gun. A few glues can be reduced to ash with a lower temperature flame and then wiped away. It really depends on the composition of the glue.
Try a razor blade scraper first, then proceed cautiously with low heat from a hair dryer and then razor blade scraper usage. One of these should work.
Tape is pretty much plastic with some glue on it. Its the glue that sticks to the item you're taping, so when you take that tape off, the glue will normally stay.
Remove duct tape adhesive with Goo-Gone or Goof-Off.
I have just done this after trying other methods suggested on the net. The simplest way was to warm the tape itself with a hair dryer then scrape the tape off with a knife or plastic card. Soak the residue on the glass in cooking oil on a piece of kitchen roll. It seemed to dissolve the remaining glue very quickly. then wash off with washup liquid. No harmful chemicals or expensive glue removers involved. Best not to waste your best olive oil on it though!
Goof Off or Goo Gone.
you could lay a piece of duck tape sticky side up and lay on top of that another piece of duck tape so the 2 sticky sides are facing eachother there fore there should be a double sided peice of duck tape if there is any stickiness left one the sides all you have to do it cut it off with a pair of scissors ( it doesnt matter whot kid of scissors)
Glass shops have precut mirrors that they can order. They usually run about $10.00. Scrape the old mirror off the plastic with a sharp chisel or razor knife. Scrape off any excess adhesive. You can glue the new mirror in with clear silicone but be sure to tape it on so the silicone has time to cure. Leave it overnight and pull the tape off.
Use a glue gun. The glue will peel off fairly easily when you are ready to remove it.
Acetone or lacquer thinner should do it.
It will appear to at first, but will loosen off as it dries out.
Lavender oil or Baby-wipes.ANS 2 Rub it off with Goo Gone
Scrape it off with a chisel or sharp craft knife. Remove residue with Goof -Off.
a cone around his head or put duck tape over it