Road Marking Paint and Machine Manufacturer
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In the process of road marking construction, although the application of hot melt coating technology is mature, various practical problems may still be encountered. TOP ROAD Transportation Technology Co., Ltd., with years of on-site experience and technical accumulation, has systematically summarized diagnostic methods and solutions for common construction problems, providing professional references for the industry.
Causes and treatments of yellowing and discoloration of markings
Yellowing caused by overheating of materials is one of the common construction defects. When the heating temperature of the hot melt coating exceeds a reasonable range, the resin component will undergo oxidation reaction, resulting in the marking appearing yellow. TOP ROAD Transportation Technology Co., Ltd. suggests using a segmented heating method, starting with low-temperature preheating and gradually increasing the temperature, while using temperature monitoring equipment to ensure that the material is always in the appropriate temperature range. For the markings that have already turned yellow, they need to be redrawn and the subsequent construction temperature must be strictly controlled.
Quality abnormalities caused by moisture in materials can also lead to color distortion. Improper storage or damaged packaging can cause the coating to absorb moisture, generate steam during heating, and affect the whiteness of the material. TOP ROAD Transportation Technology Co., Ltd. suggests improving storage conditions by checking the condition of materials before use. Materials that are slightly damp can be mixed with dry new materials, while those that are severely damp need to be replaced.
The causes and prevention of bubble phenomenon in marking lines
Moisture on the ground is the main cause of bubble formation. Before construction, it is necessary to ensure that the road surface is completely dry, and after rain, sufficient time should be allowed for the moisture to evaporate. TOP ROAD Transportation Technology Co., Ltd. recommends using professional humidity detection instruments and, if necessary, using hot air equipment to assist in drying. For the bubbles that have already appeared, the repair or rescheduling plan should be determined based on the severity.
Applying the primer before it dries completely can also cause bubble problems during construction. The primer requires sufficient drying time, and if its volatile components are not fully released, they will expand and form bubbles after being covered by the hot melt coating. TOP ROAD Transportation Technology Co., Ltd. suggests adjusting the drying time according to the environmental temperature and humidity, and establishing a strict construction interval control process.
Hot melt coating for road markings, construction issues with hot melt coating
Improvement measures for poor anti reflection effect
The optimization of glass bead spreading process is the key to improving the reflective effect. Spreading too early can cause the glass beads to sink too deeply into the coating, while spreading too late can result in weak adhesion. TOP ROAD Transportation Technology Co., Ltd. has developed synchronous spreading technology to ensure that glass beads are embedded in the coating surface in an ideal state. It is also recommended to regularly calibrate the spreading equipment to ensure even spreading.
The matching relationship between coating temperature and glass beads directly affects the reflective effect. Excessive temperature can cause glass beads to settle excessively, while low temperature can affect the embedding effect. TOP ROAD Transportation Technology Co., Ltd. has established a corresponding relationship model between temperature viscosity settling degree, providing accurate process parameters for different environmental conditions.
Solution for Insufficient Adhesion of Marking Lines
Insufficient road cleanliness is the main cause of detachment. Impurities such as oil stains and dust can form an isolation layer, affecting the adhesion between the coating and the road surface. TOP ROAD Transportation Technology Co., Ltd. recommends using professional cleaning equipment and specialized cleaning agents for special polluted road surfaces. Conduct adhesion testing before construction to ensure that the base treatment meets the standard.
Improper selection of primer can also affect the adhesion effect. Different materials of road surfaces need to be matched with corresponding types of sub coating agents. TOP ROAD Transportation Technology Co., Ltd. has developed a series of primer products, providing professional solutions for different substrates such as asphalt and cement. Compatibility testing must be conducted before construction to ensure material compatibility.
Preventive measures for premature wear of markings
The improvement of the wear resistance of coatings is the basis for extending their service life. TOP ROAD Transportation Technology Co., Ltd. has significantly improved the wear resistance of coatings by optimizing the resin system and filler ratio. It is recommended to choose products of corresponding levels based on traffic flow, and special wear-resistant formulas should be used for heavy-duty roads.
The precise control of construction thickness directly affects the wear resistance period. Insufficient thickness will accelerate wear, while excessive thickness will result in material waste. TOP ROAD Transportation Technology Co., Ltd. promotes the use of automatic control equipment to ensure that the thickness of the markings is uniform and meets the standards. Establish a thickness monitoring mechanism during the construction process to promptly detect and adjust thickness deviations.
Hot melt coating for road markings, construction issues with hot melt coating
Construction response strategies in special environments
Special attention should be paid to the flowability and curing speed of materials during construction in low-temperature environments. TOP ROAD Transportation Technology Co., Ltd. has developed a low-temperature special coating, which improves low-temperature construction performance by adjusting the formula. It is recommended to equip insulation equipment to shorten the temperature loss during material transportation.
Construction in humid and rainy environments should focus on preventing the impact of moisture. TOP ROAD Transportation Technology Co., Ltd. suggests adopting moisture-proof packaging and specialized dehumidification equipment, and establishing a weather warning and emergency response mechanism. Develop standardized interruption and restoration construction procedures for sudden rainfall situations.
Through systematic problem diagnosis and scientific solutions, the quality of hot-melt marking construction can be significantly improved. TOP ROAD Transportation Technology Co., Ltd. will continue to share practical experience and work together with industry colleagues to promote construction technology progress. Welcome experts from all walks of life to exchange guidance and jointly safeguard road traffic safety.
Our company is a factory specializing in the production of road hot-melt coatings and hot-melt coating production lines. If you need to know more details, please feel free to email at any time export@toproadtraffic.com
