During the powder coating process, insufficient adhesion occurs; the following points need to be understood:

1. Verify that the high-temperature tape used meets the production requirements for its heat resistance. Typically, powder coating requires resistance to temperatures of 210-220 degrees, while powder coating spray processing usually requires 180-200 degrees (the requirements for heat resistance may vary depending on the painting process; the above figures are for reference only).

2. Check whether the temperature data of the painting line or spray line is within the process requirements, and whether the temperature is too high; inspect if the furnace channel temperature sensor is functioning properly.

3. The quality issue of high-temperature adhesive tape products with powder coating processing, whether the high-temperature adhesive tape is strictly heated and cured according to the sensitive adhesive roasting data during the coating production process, insufficient curing time, or too fast coating line speed can lead to the inability of the adhesive, primer adhesive, and base material to combine in composition.

After powder coating and hot melt adhesive lamination, the semi-finished products should be left to rest for 2-3 days before being re-rolled and cut for use. The purpose is to allow for full bonding between the adhesive and the base material, with the adhesive fully curing in a natural state.