As a type of hot melt adhesive, hot melt edge banding glue is mainly used in the board edge banding machines of some furniture factories. Usually, to better cooperate with the customers’ machines with different edge banding rates, glue manufacturers will indicate the softening point temperature and use the temperature of hot melt adhesive in the TDS product manual.
However, many workers are unclear about the difference between edge banding hot melt adhesives when using them. To enable everyone to use glue better, I will explain to you the difference between the softening point temperature and the use temperature of edge banding hot melt adhesive:
First of all, let me explain to you the softening point of edge-banding hot melt adhesive. The softening point is a physical indicator of hot melt adhesive, which refers to the temperature at which the glue softens. Simply put, the higher the softening point of the hot melt adhesive, the less likely the glue is to melt. It can also be understood that the softening point is also an important indicator for measuring the temperature resistance of furniture.
Many manufacturers have their testing methods for the heat resistance of furniture after edge banding. Large-scale manufacturers have also proposed their testing standards for the heat resistance of their products, especially for the heat resistance of kitchen furniture. For example, the softening point temperature range of EVA edge-banding hot melt adhesive must be between 90-135°C (different manufacturers have different products), and the softening point of PUR edge-banding hot melt adhesive is between 50-75°C (different manufacturers have different products).
Next, I will tell you about the use temperature of the edge banding hot melt adhesive. The use temperature generally refers to the temperature of the hot melt edge banding machine’s glue roller. For hot melt adhesives with different temperature requirements (high temperature 180-210℃, medium temperature 150-180℃, and low temperature 130-150℃), the glue can only play the best adhesive performance at a reasonable use temperature. It should be noted that on some aging edge banding machines, there is a considerable error between the temperature of the display screen and the actual temperature (normally, the actual temperature is lower than the temperature of the machine display screen).
Therefore, it is necessary to calibrate the machine’s sol glue pot temperature regularly. Warm reminder to furniture manufacturers: if the temperature of the edge banding machine is set too high, the hot melt adhesive will be carbonized or smoked, which will affect the bonding strength of the glue; however, if the temperature is set too low, the hot melt adhesive will not reach the state of melting and liquefaction, and the bonding strength of the glue will be insufficient.
The above is the difference between the softening point temperature and the operating temperature of the edge banding hot melt adhesive. When choosing glue, you can choose glue according to the edge banding speed and process requirements of your hot melt edge banding machine and set the required operating temperature for actual production. If you have any questions about edge banding hot melt adhesive, you can consult us.
