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Common problems and solutions of hot-melt coatings for road markings

July 01, 2026

Common problems and solutions of road marking coatings

Road marking coatings play a crucial role in urban transportation. It not only guides vehicles and pedestrians, but also relates to traffic safety. However, we may inevitably encounter some problems during the use process. Today, we will talk about these common problems and their solutions to help everyone better understand the application of road marking coatings.

Common problem one: Insufficient adhesion of paint

Have you noticed that some road marking coatings start to peel or peel off in a short period of time? This is because the adhesion of the coating is insufficient. Before painting, if the ground is not cleaned thoroughly or the water absorption of the base material is too strong, it will cause the paint to not adhere well.

Solution method

Before painting, make sure the ground is dry, clean, and use a suitable primer. If the ground is made of concrete, it is best to wait for a period of time after pouring to allow the moisture to evaporate. In addition, choosing high-quality road marking coatings is also very important, only in this way can adhesion be improved and service life be extended.

Common problem 2: Color fading

The color fading of paint is a headache, especially in places with strong sunlight. Long term exposure to ultraviolet light will gradually make the color of the coating dull and dull.

Solution method

To prevent color fading, it is recommended to choose road marking coatings with high weather resistance and UV resistance. In addition, during the coating process, it is possible to consider adding some UV resistant additives, which can better protect the color of the coating from being affected.

Common problem three: Insufficient skid resistance

When driving, the skid resistance of the markings is directly related to safety. Especially on rainy days, if the markings are not slippery enough, the vehicle is prone to skidding and causing accidents.

Solution method

When choosing road marking coatings, you can choose products that have added anti slip particles. These particles can increase the friction of the markings and enhance safety. In addition, even coating is also crucial during painting, ensuring that the thickness of the coating is moderate and can achieve the best anti slip effect.

Common problem four: Construction climate impact

The weather is also an undeniable factor in the painting process. High temperature, low temperature, humidity, etc. can all affect the construction quality of road marking coatings.

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Solution method

Before construction, pay attention to the weather forecast. Generally speaking, the optimal construction temperature is between 15 ° C and 30 ° C. If the weather is not ideal, construction can be postponed to avoid adverse effects caused by environmental factors. In addition, ensuring sufficient ventilation during construction can help the paint dry faster and prevent the formation of bubbles.

Common problem five: Uneven coating thickness

Sometimes, during the coating process, the thickness of the coating may be uneven, resulting in unsatisfactory final results, especially when using brush coating or spray coating, which is more prone to this problem.

Solution method

To avoid this situation, it is recommended to use professional painting tools such as automatic spraying machines, which can ensure the uniformity of the coating. At the same time, attention should be paid to the coating amount in each area during painting, maintaining consistent speed and pressure, which can greatly reduce unevenness.

Common problem six: Slow drying of coatings

Many times, we find that road marking paint dries slowly, affecting traffic flow. This not only brings difficulties to construction, but may also pose safety hazards.

Solution method

Choosing fast drying road marking coatings is a good choice to accelerate the drying speed of coatings. In addition, fans and other equipment can be used to accelerate air circulation after construction, helping the paint dry faster. During construction, attention should also be paid to the thickness of the coating, as excessively thick coatings can prolong the drying time.

Summary

The process of using road marking paint is not smooth sailing, and encountering problems is common. But as long as we take these common problems seriously and adopt the correct solutions, we can effectively improve the effectiveness and lifespan of coatings. I hope the above sharing can help friends who need to paint road markings, making our traffic environment safer and more orderly.

Our company is a professional manufacturer of road hot-melt coatings, road retroreflective measuring instruments, and road marking machines. If you are interested, please feel free to communicate with me via email at any time export@toproadtraffic.com

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