Need to judge whether the foam double-sided adhesive is good in adhesion, you can use tape to stick the item and quickly pull it to see the holding force. Repeat the paste several times and touch it by hand until the viscosity is obviously lowered. The good quality double-sided adhesive is more wear-resistant. More viscous.
When purchasing foam double-sided tape, it is necessary to pay attention to determine whether the surface of the adhesive tape is smooth and wrinkle-free. Under normal circumstances, the bubble double-sided tape which has just been produced can be seen to have bubbles. After one week, The bubbles will basically dissipate. On the contrary, the sealing glue mixed with impurities has a lot of irregularly distributed white spots, and the hands are not pressed. It is also necessary to judge whether the toughness of the tape is good, and the better the toughness, the less likely the brittle fracture occurs, and the high-quality foam double-sided adhesive has good toughness and can well protect the packaged product.
Identifying the quality of foam double-sided tape The standard of good or bad product is the initial adhesion, one is the retention force, but the two are inversely proportional. We must understand this in order to purchase the appropriate tape and obtain more. Good use effect.
The holding viscosity of foam double-sided tape refers to a kind of retention force of foam double-sided tape after sticking to the carton and other products. The initial tack refers to the hand-feeling of the coil or the lap joint viscosity, and the general reaction is in shearing and peeling strength. And other physical indicators. Sticky quality is directly related to the safety of products in warehouse storage, long-distance, short-distance transportation. The double-adhesive foam with good initial tackiness generally has a relatively high moisture content of the glue; while the double-sided adhesive with good viscosity is mostly a composite of glue with less moisture content or more oily component content.
