The glue of the tape is acrylic, also called pressure-sensitive adhesive, the main component is the tincture. The tincture is a kind of macromolecular active substance, and the temperature has a certain influence on molecular activity. The tincture content of the glue directly affects the use of the tape. The initial adhesive force of normal sealing tape is between No. 13 (steel ball number), and the thickness of the tape glue is generally 22 microns. It is the thickness that meets the standard. For colored tapes, it is convenient for marking and masking purposes. Generally, beige and yellowish are more common to use. Some people think that colored tape is the color of the film, but the color is the color of the glue.