What is the difference between traffic paint and regular paint?

Thermoplastic road marking paint, also called hot melt marking paint, is a kind of powder paint. When applied as road surface markings, a hot melt kettle is used to heat it to 200 °C (392 °F) to melt the powder, after which it is sprayed on the road surface. After cooling, the paint forms a thick polymer layer, which is wear-resistant, bright, and reflective. In recent years, practical applications tests have proved that the marking lines lack surface roughness and can easily cause wheel slip, resulting in a traffic accident in snow and rainy weather. Therefore, some countries once restricted the use of this paint or demand the use of anti-skid particles. In order to increase the antiskid performance of the line, thermoplastic paint has added reflective glass beads and other coarse fillers. Thermoplastic can be used very effectively for large anti-skid areas on roads and pedestrian walkways by adding glass beads. It can be produced in any colour and is suitable for car parks, factory walkways, and many other areas. It hardens quickly and can be driven over after just a few minutes.

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Components

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Thermoplastic marking paint consists of synthetic (polymeric or non-polymeric) resin, glass beads, pigments, fillers (fine like calcium carbonate and coarse like sand), packing materials, additives, etc.

1. Synthetic resin has thermoplasticity, make the hot melt coating fast-dry and strongly adhesive to the road surface. Non-polymeric resins, based on colophony, are also widely used.
2. Additives in the paint can increase the plasticity of the coating, and make it resistant to subsidence, pollution and color fading.
3. Pigments: the common colours of road lines are yellow and white. White pigment is titanium dioxide. Occasionally zinc oxide can be used, but it is less effective due to low refractive index. For yellow thermoplastics, organic pigments (like Pigment Yellow 65, 74 or 83) are mostly used; lead-containing pigments are obsolete and banned in essentially all developed countries.[

   citation needed

   ] Thermoplastic road markings can also be formulated in other colours.
4. Packing materials, as filling added into the paint, ensure mechanical strength, wear resistance, and color of paint coating. The particle size will affect liquidity and precipitation, as well as the surface processing.
5. Glass microspheres are added in order to improve the identification of lines at night, to improve the brightness and durability of the marking. Glass beads, usually 0.1-1.4 mm in diameter, are colourless and transparent; they reflect light from vehicle's headlights back toward the driver and foremost protect the road marking from abrasion.

Matched machines

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A road marking machine is a machine specially used to mark different traffic lines on road surface, and some can remark on old lines directly. It can screed, extrude, or spray processed road paint onto the road surface to form durable coating lines. A hot melt kettle is used for continuously heating, melting, and stirring thermoplastic marking paints, preparing molten paints for the thermoplastic machine, especially for long-distance road-line-marking work. The molten paint quality can affect the line quality greatly.

Microplastic pollution

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Thermoplastic paints, when used as road markings, are a source of microplastic pollution. Abrasive wear of road marking paint resins has been claimed to be responsible for 7% of all microplastic pollution, with estimates ranging from 0.7% to 19%.[1]

See also

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References

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When it comes to painting, not all paints are created equal. Different applications require different types of paint to ensure the best results. One common distinction is between traffic paint and regular paint. These two types of paint serve distinct purposes and have unique properties that make them suitable for their intended uses. In this article, we will explore the key differences between traffic paint and regular paint to help you make informed decisions for your specific projects.

1. Composition:

Traffic paint is specifically formulated for road and pavement marking applications. It is engineered to withstand heavy traffic and adverse weather conditions. Traffic paint typically consists of high-quality acrylic or alkyd resin, pigments, and specialty additives. These additives enhance durability, adhesion, and reflectivity, making it ideal for road markings.

2. Durability:

One of the most critical differences between traffic paint and regular paint is durability. Traffic paint is designed to withstand constant vehicle and foot traffic. It is also engineered to endure exposure to harsh environmental conditions, including sunlight, rain, snow, and extreme temperatures. Regular paint, on the other hand, is not built to withstand such stresses.

3. Reflectivity:

Safety is paramount when it comes to road markings. Traffic paint often contains reflective glass beads or microspheres that enhance visibility at night. This feature ensures that road markings are easily seen by drivers even in low-light conditions. Regular paint lacks this reflective property, making it less suitable for safety-critical applications.

4. Fast Drying:

Traffic paint is formulated to dry quickly, allowing roadways to be reopened to traffic soon after application. This is crucial for minimizing traffic disruptions during road maintenance and construction. Regular paint may take longer to dry and is less suitable for time-sensitive projects.

5. Regulatory Compliance:

Traffic paint must adhere to specific regulatory standards and requirements to ensure road safety. It needs to meet reflectivity, durability, and color standards set by traffic authorities. Regular paint does not need to meet such stringent regulations.

Regular Paint

1. Versatility:

Regular paint, also known as decorative paint, is designed for general purposes such as interior and exterior painting in residential, commercial, and industrial settings. It comes in various finishes like flat, semi-gloss, and gloss, making it versatile for a wide range of applications.

2. Aesthetics:

Regular paint offers a wide spectrum of colors and finishes, allowing for creative expression and interior or exterior design choices. It is primarily chosen for its aesthetic appeal rather than functional properties.

3. Drying Time:

Unlike traffic paint, regular paint is not engineered for fast drying. Depending on the type and conditions, it can take longer to dry. This extended drying time can be advantageous for artistic applications but is a drawback when time is a crucial factor.

4. Cost:

Regular paint is generally more cost-effective than traffic paint. Its primary purpose is to enhance the appearance of surfaces, while traffic paint focuses on safety and durability, which often comes at a higher cost.

Conclusion

The key difference between traffic paint and regular paint lies in their composition, purpose, durability, reflectivity, and drying time. Traffic paint is engineered for road and pavement marking applications, focusing on safety, durability, and fast drying, while regular paint is versatile, aesthetically pleasing, and generally more affordable. It is essential to choose the right type of paint based on the specific requirements of your project. Whether you are looking to ensure safety on the road or beautify your home or workplace, understanding these differences will help you make an informed choice and achieve the best results.

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