1.The influence from the quality of hot melt rod marking paint itself. 
A.The brightness factor of hot melt road marking paint is one of the important reasons that directly affects the reflection coefficient of the marking line. Therefore, The raw material quality and its content should be in accordance with standard requirement.

B.The quality of pre-mixed glass beads in the hot melt road marking paint will have the most important influence on the durability of the marking reflective effect. The quality of glass bead mainly includes refractive index, roundness rate and particle size distribution.

Therefore, the buyer need to make specific requirements on the performance indicators of thermoplastic paint, to ensure that the purchase of products to meet the needs of construction quality. 

2.Impact from construction equipment. 
A.The influence of Pre-heater (the hot melt kettle) on the performance of the hot melt coating. Firstly, to avoid repeated heating paint for a long time, which will cause cracking of the resin, affecting the performance of the coating. Secondly, thermoplastic paint should be heated strictly according to the use requirement, avoid long high temperature heating. Thirdly, the fluidity of the melted coating will have a direct impact on the embedding degree of glass beads, which is easy to ignore in the process of construction. 

B.The application mode of surface sprinkling glass beads and the amount of glass beads used will directly affect the reflection coefficient of the marking line. Priority should be given to the equipment with adjustable pressure and flow of glass beads, and before construction, it is necessary to debug the construction equipment to ensure that the equipment can achieve the best use effect.

3.The influence from the quality of surface sprinkling glass beads. 

A.The quality of surface sprinkling glass bead itself. It mainly includes refractive index, roundness and particle size distribution. To use the glass bead which comply with the quality requirements.

B.The application quality of the surface of the glass. Through repeated construction tests, when the surface of the glass beads in coating with the quality requirements can be embedded in the coating, and ensure that more than 50% of the amount can be exposed to one-third of the diameter, in order to make the retroreflection coefficient of the line to achieve the best state, while ensuring that the glass beads are firmly bonded and not easy to fall off. This needs strict construction technology control, to be able to accurately control the construction temperature of the coating and glass beads broadcast mode and broadcast amount of cooperation.

Otherwise, it is easy to cause: [the best hot melt marking equipment + the best quality hot melt marking coating ≠ the best marking quality.]