At present, foreign road marking paints are highly water-based and develop rapidly. More than 90% of road marking paints in developed countries such as the United States, Germany, Spain, Sweden, and Finland use water-based products. Due to the early start of foreign road marking coatings and the rapid development of technology, nanometer road marking coatings, two-component road marking coatings, pigment-coated road marking coatings, and so on have appeared.
A few months or even a few days after production, there will be large changes in viscosity, surface skinning, etc., resulting in poor spraying workability of the coating and poor opening effect; the non-sticking time cannot meet the actual requirements of road construction and affect the construction The smoothness of traffic at the time.
There is now more than 100 large and small road marking paint factories in China. Several large factories with relatively strong technical strength have also begun to produce water-based road marking paints. In order to ensure the quality of road marking paints, the Ministry of Transport has formulated relevant industries. Standards are vigorously promoting water-based road marking coatings. Floor coating expert analysis: With the development of China's road transportation industry and the rapid increase in vehicle ownership, the demand for marking coatings will soar. With the increase of people's awareness of environmental protection and the support of national policies and regulations, the demand for water-based road marking coatings The amount is large.
my country's water-based road marking paint products have been used in the construction of airports, highways, and other projects, which also exposed some technical bottlenecks. The current problems of water-based reflective road marking coatings include: poor abrasion and weather resistance, and need to be recoated at interval 1a; poor water resistance and alkali resistance, unable to meet the actual requirements of road soaking in water; poor stain resistance, and the surface of the marking is easy to accumulate dust. Affect the retroreflective coefficient and reduce the reflective effect; poor storage stability.
