Ever wonder how all of those black chewing gum spots are removed from sidewalks? Removing chewing gum is a common occurrence at many commercial properties. Go the the entrance of any gas station, grocery store or market and you will most likely see the remnants of chewing gum stuck to the concrete. Besides being unsightly, it also invites others to follow suite and discard their gum on the sidewalk as well.
Commercial Gum Removal
Due to the chemical makeup of most chewing gum, and the acidity if the saliva it's covered in, chewing gum should be removed as soon as possible! There is a much better chance of concrete developing a stain when gum has been on the surface for an extended period of time and in extreme cases gum can even etch concrete.
There are other methods for chewing gum removal that work safely, however, the proper HOT WATER pressure washing setup is by far the most efficient and reliable method.