The quality inspection of road marking products must strictly follow the standards of the Road Traffic Law.
The technical index testing items of hot-melt road marking coatings include: coating density, softening point, non-stick tire drying time, coating color and appearance compressive strength, abrasion resistance, water resistance, alkali resistance, glass bead content, Chroma performance White, yellow, artificially accelerated weather resistance, fluidity, heating stability standard value. After drying, there should be no wrinkles, spots, blistering, cracks, falling off and sticking tires, etc. The color and appearance of the coating film should be little different from the standard board. After soaking in water for 24 hours, there should be no abnormality. There should be no abnormal phenomenon after immersion in the medium for 24 hours. After the artificial accelerated weathering test, the coating of the test plate will not be cracked or peeled off. Slight chalking and discoloration are allowed, but the variation range of the brightness factor should not be greater than 20% of the brightness factor of the original template, and it should be kept for 4 hours under stirring without obvious yellowing, coking, caking and other phenomena.
Our country has high requirements for durability, including wear resistance. The coating of road markings is not done once and for all, and the hot melt markings generally fall off or wear out after two years. However, when the marking line is re-coated, the removal work is very heavy and will cause a lot of waste. Although there are many such cleaning machines, the quality of the marking line is not ideal, not only gnawing the road, but also can Seeing the white marks on the road brings great regret to the beauty of the road. At the same time, the wear resistance of the marking line does not reach a certain age, which will bring greater harm.
The quality standards of road markings must meet the regulations, and the potential safety hazards brought by inferior products cannot be ignored.
Post time: Feb-25-2022
