We usually pay attention to the shelf life of food when shopping for food. Because we want the food we buy to be healthy. And for tape we rarely care about this. In fact, the tape of the tape manufacturer also has a shelf life.

Expired tape, its initial tack, adhesion and retention are greatly reduced, and the function is greatly reduced. Originally, this tape could withstand high temperatures above 100°C, but after deterioration, it may only be resistant to 30°C. In addition, the insulation performance and waterproof performance of the tape will be affected. Generally speaking, half of the life of the tape used in the electrical industry is 3 years. After three years, your tape may need to be replaced. The tape used in the automotive industry has higher requirements and a lifespan of about 10 years. Therefore, when we buy three-layer cloth tape, we should also check its shelf life. Avoid buying expired tape that doesn't work well.

In order to save cost and time, most businesses will wholesale a large amount of tape from tape manufacturers at one time, but many wholesalers do not expect to wholesale a large amount of tape at one time, and storage will become a problem. If it is not properly protected, it will face a fortune. Huge loss. In fact, as long as you pay attention to the way you usually store it, this is not a problem.

The tapes of different specifications should be placed separately, so that it is more orderly, and it is more convenient to take them for use. Also, remember not to put them in humid places or places with high temperature. The tapes are originally If the temperature is too high, it will cause the adhesive to fail, which will affect our use.

Don't think that thick tape is good. The thickness of regular tape is between 20 and 28 microns. Those thicker tapes are mostly because the tapes are made of impurities, so the thickness increases. Don't think that brightly colored tapes are good tapes. That's because when they produce tapes, in order to cover impurities, colored powder is mixed in the glue. Generally, the tapes of egg yellow and light green are generally of inferior quality.

Pinch the tape tightly and then pull it apart quickly, you can pull off the tape on one side, and you can see the purity and transparency of the original film. If no glue is pulled apart or pulled apart in dots, there is a large amount of impurities in the glue, and the glue has no cohesion. Or too much water has evaporated. At this time, the initial adhesion of the tape has dropped very much, and the feel can be distinguished.

On the one hand, because the adhesive effect of the tape occurs, it is the water content of its surface adhesive, so the microporosity of the surface of the object to be pasted is very important for the selection of the tape. If it is large, the tape used must be one with the adhesive rapidly coagulating, otherwise it will not have good effect and effect. On the other hand, the tape is coated with an adhesive on the bottom tape, and it must be fully dried before finishing it into a roll. Otherwise, the tape will be too wet and it will stick together very tightly, making it difficult to open, and some cannot be used at all. If it is for the sticker marks on the surface of hard objects, we can use grease-free nail polish remover on the surface of the object, and then wipe gently with a soft cloth.