When we use hot melt adhesives, we occasionally encounter poor bonding effects. What is causing this? How to avoid this situation when using hot melt glue sticks? Let's take a look here.
Only when the dust and stains on the surface of the sticky substance are removed, can the gel effect of the hot melt adhesive be achieved.
If there are no special requirements for the color of the hot melt adhesive strips, yellow hot melt adhesive strips with better viscosity should be selected.
The heat-resistant hot melt adhesive tape is highly sensitive to temperature; the hot-melt adhesive will become soft when the temperature exceeds-a fixed temperature. At high temperatures, hot melt adhesives will become brittle at high temperatures. Therefore, when choosing a hot melt glue stick, the change in ambient temperature must be considered.
The viscosity of hot melt adhesive strips can be divided into front viscosity and back viscosity. Hot melt adhesives and adhesives can only be bonded together stably if the front viscosity and the back viscosity are combined. Hot melt glue takes a long time, so be sure to make it well.
A major feature of hot-melt particles is fast bonding. Usually the working time of hot melt glue stick is about 15 seconds. With the popularization of modern consumption methods, the service life of pipes and hot melt adhesives, such as binding and speaker manufacturing, has been shortened, about 5 seconds.