Permanent markers are a type of writing implement that uses a fast-drying, opaque ink that is designed to be permanent and resistant to water and fading. They are commonly used for writing on a variety of surfaces, including paper, plastic, metal, and glass.
While permanent markers are very effective for their intended purpose, the ink can be very difficult to remove once it has been applied. However, there are a few methods that can be used to remove permanent marker ink from different surfaces.