Top Road shares the reasons and treatment methods for coating detachment after hot melt marking paint application

The same hot-melt marking paint may result in significant differences in the quality of the marking on the same road surface with different construction teams. Some markings can last for 12 months, while others can last for 6 months. Some may also fall off within a few days. The quality of coatings is certainly important, and the construction process is particularly important in the marking construction. Below, the editor of TOP Road will introduce the reasons and treatment methods for the coating detachment of hot-melt marking paint:

1. 1.Reason: There is moisture on the road surface.
   Method of handling: After the road surface is completely dry, it is necessary to blow dry or bake dry the construction road surface when necessary.
2. 2.Reason: The large temperature difference and low road surface temperature can cause the markings to fall off.
   Solution: Increase the temperature of the hot melt marking coating material appropriately, and if necessary, preheat the construction road surface.
3. 3.Reason: The bottom coating agent (base oil) is not dry, and the coating is uneven, too thick, and the interval time is short. If the bottom coating agent is not dry, it will cause the markings to fall off.
   Processing method: Apply the primer evenly and completely dry before marking.
4. 4.Reason: No coating was applied.
   Processing method: Apply the lower coating evenly.
5. 5.Reason: The road surface is not clean, with dust, sand, oil stains, etc.
   Treatment method: Clean and blow clean the soil and oil stains on the construction road surface. Polish and blow clean before construction.
6. 6.Reason: The connection with the old line is not strong enough.
   Processing method: First polish the aged old line, apply the coating evenly, and wait for the coating to dry before applying the hot melt marking paint and marking.