It is very common for chewing gum to accidentally fall into a car and then get trampled or crushed on the seats. The problem is, the coating can easily get damaged if the root gums are not removed properly. Several ways chewing gum remover can work and be safely removed from car coatings, even if they have been around for a long time or are deeply rooted.
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One option is to freeze the rubber until it is hard and brittle so that it can be carefully graded or removed from the pad. Several ice cubes collected in a plastic bag can stick to the affected area until the soft rubber hardens.
Although this method is effective, it can take a long time for the gums to harden. To save time, you can use the "air in a box" type of compressed product which can be used to remove dust, etc. This technique also gives you more control over-treating the affected area.
Once brittle, the rubber can be carefully graded or removed with a thin, blunt tool such as an ice-scraper. If the gum has been crushed or pressed into the fibers of the upholstery, you may need to repeat the process, carefully selecting smaller pieces at a time to make sure you don't drag the upholstery fibers with them. Once removed, you'll need to clean the area with special upholstery cleaner to remove dirt and return the fabric to its condition.