When there are many impurities or particles on the surface of the adherend of the double-sided tape, the adhesion of the double-sided tape will also be reduced.

Most tapes cannot be wetted with water, especially water-soluble tapes. When they touch water, the tapes will perform and cannot be used normally. There is also a special working environment in the industry, and it is inevitable to come into contact with water. At this time, we should choose a special waterproof tape. When choosing the tape, look at the adhesive. The water-proof tape is stuck with solvent-based glue and epoxy resin. For glue and polyurethane, glue does not react with water or chemically.

There are cases where the expiration date has passed. Hot melt double-sided tape is mainly used in stickers, stationery, office and so on. 3M double-sided tape is widely used in various fields such as mobile phones, automobiles, digital cameras, LCD, TV, PDA, LCD liquid crystal displays, laptop computers, etc., to meet the different needs of customers to the greatest extent, and should be selected according to the application products and environmental needs. , you can refer to the following instructions: 1. The non-woven substrate has good double-sided adhesiveness and processability. Generally, the long-term temperature resistance is 70-80 °C, and the short-term temperature resistance is 100-120 °C. The lamination, automobiles, mobile phones, electrical appliances, sponge, rubber, signs, paper products, toys and other industries, home appliances and electronic instrument parts assembly, display lenses. 2. Double-sided adhesive without substrate has excellent bonding effect, can prevent shedding and excellent waterproof performance, good processability, good temperature resistance, short-term temperature resistance 204-230 ℃, general long-term temperature resistance 120-145 ℃ , the thickness is generally , suitable for the bonding of nameplates, panels, decorative parts, and so on. !