What is the typical lifespan of road markings?

The service life of road markings is influenced by various factors such as material, traffic flow, climate conditions, and road surface conditions. The service life of different types of markings varies greatly, generally ranging from 6 months to 3 years, as follows:

1、 Divided by marking material

Solvent based marking at room temperature

Material characteristics: Made from resin as the base material, mixed with pigments, solvents, etc., and dried by solvent evaporation after construction.

Service life: usually 6-12 months.

Applicable scenarios: Mostly used for small traffic flow branches, rural roads, etc., with low cost but poor wear resistance, susceptible to rain and vehicle crushing and wear.

Heating solvent based marking

Material characteristics: Heating construction based on ambient temperature solvent, slightly faster drying speed, and slightly stronger adhesion.

Service life: approximately 8-15 months.

Applicable scenario: Urban secondary roads with moderate traffic volume.

Hot melt marking

Material characteristics: mainly composed of synthetic resin and glass beads (enhanced reflectivity), heated to 180-220 ℃ for construction, cooled to form a hard coating with strong wear resistance.

Service life: Generally 1-3 years (about 1-2 years for main roads with high traffic volume, and 2-3 years for secondary roads or rural roads).

Applicable scenarios: The most widely used type of marking, suitable for roads with high traffic flow such as urban main roads and highways, and is currently the mainstream type of marking.

Two-component marking

Material characteristics: Formed by chemical reaction curing after mixing two components, it has better adhesion, wear resistance, and stain resistance than hot-melt type, and has long-lasting reflective performance.

Service life: up to 2-4 years, and even longer for some high-grade products.

Applicable scenarios: Highways, bridges, tunnels, and other road sections with high durability requirements, resulting in higher costs.

2、 Key factors affecting service life

Traffic flow: The larger the traffic flow and the more heavy vehicles there are, the higher the frequency of rolling and friction on the markings, and the faster the wear and tear speed (such as the shorter lifespan of markings on highways compared to rural roads).

Climate conditions: Rainy areas are prone to peeling off markings due to rainwater erosion; High temperature areas may accelerate material aging; De icing agents and snow removal operations in icy and snowy areas can also shorten their lifespan.

Road condition: Markings attached to flat and clean road surfaces have a longer lifespan; If the road surface cracks, settles, or has a lot of oil stains, it will reduce adhesion and lead to premature detachment.

Construction quality: If the thickness of the marking is insufficient and the connection with the road surface is not tight (without cleaning the road surface impurities), it will directly affect the service life.

3、 Maintenance and replacement of markings

To ensure the clarity and functionality of the markings, timely re marking is necessary when they reach their service life or when there is significant wear and tear (such as reduced reflective effect or broken lines). In daily maintenance, the overall service life can also be extended by repairing local damaged areas.

In short, hot-melt marking has become the preferred choice for balancing lifespan and cost due to its high cost-effectiveness and strong adaptability; For scenarios with extremely high durability requirements, two-component marking is a better choice.