How to choose the quality of the tape? In fact, there are two standards for the quality of the adhesive tape in use, one is initial adhesion, and the other is retention. The two are inversely proportional. In general, adhesive tapes with a viscosity less than 10 are less coated with glue, generally only about 20 microns, such as stationery tapes, ordinary promotional binding tape. The initial adhesion of normal sealing tape is between 15-20, and the thickness of this tape is generally 22-28 microns. It is the standard thickness. However, most of the tapes on the market are doped with impurities, so the thickness is increased. To mask the impurities, the glue is also doped with color powder, so the transparent tape appears egg yellow and light green. Such tapes are generally inferior.
How to distinguish between colored tape? For colored tape, yellow and khaki are more common. Tighten the sticky and then quickly pull it apart. You can pull off the glue on one side and you can see the purity and transparency of the original film. You can also look at the thickness of the glue. If no glue is pulled apart or pulled apart in a point, there is a lot of impurities in this glue, and the glue has no cohesion. The second is that there is too much water and it has evaporated. At this time, the initial adhesion of this tape has dropped very much, and the hand can be distinguished. In fact, there are many ways to distinguish the quality of the tape. As long as you pay more attention to your life, you can tell the quality of the tape.
