It is fairly common for chewing gum to be accidentally dropped inside a car and then trodden, or squashed into the upholstery. One way is to essentially freeze the gum until it becomes hard and brittle so it can then be cautious valuable off, or choose upholstery. A number of ice cubes gathered inside a plastic bag can be held against the affected area until the soft gum hardens up.
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The problem is that the seat can be easily damaged if ingrained gum is not removed properly. There are several ways in which the chewing gum can be successfully and safely removed from the car seat even if it has been there for a long period or become heavily ingrained.
Although this method is effective it may take some time to harden the gum. To save time you can use this type of product 'air-in-a-tin' compressed designed to eliminate dust etc. Using this technique also means that you have little control over when treating the affected area.
After fragile, chewing gum can be carefully valuable or choose to apply such thin, blunt scraper ice for example. If the gum has been pinched or crushed into the fiber coating you may need to repeat the process and carefully select each of the smaller pieces bit by bit, make sure that you do not pull out any fibers from the upholstery with it.
Once removed you should follow up with cleaning the area with a designated upholstery cleaning product to remove any residue and help restore the fabric to its prior condition.