To use the tape, simply stretch it around the material you are trying to repair. As you wrap the tape in a circular motion, it begins to seal and “fuse” itself to the material. The most common forms of self-fusing / self-amalgamating tapes are made of silicone rubber (though other types also exist). They are designed to create a strong, seamless, rubbery, waterproof, and electrically insulating layer.
Moreover, the ease of application and removal enhances its popularity. It adheres well to surfaces but can be removed without leaving a sticky residue, making it suitable for temporary applications. It is also easy to cut, allowing for customization in width and length according to specific needs.