Glue Gun Hack
The hot molten glue from the glue gun is just incredible. It’s ideal for sealing, sticking and a lot of other exciting stuff. But the glue guns don’t have that improved dispensing system and tends to deposit a layer of adhesive on the tip.
Source: brightside.me
The worst part is, this glue is too hard for room temperature and too hot in molten form. Aluminum foil is your best option here. It will help you scrub away all the material in no time.