The world’s first dual-component marking line featuring high-refractive-index microcrystalline glass beads for rainy and nighttime conditions.

　　World’s first high-refractive-index microcrystals for rainy nights Glass beads Two-component structural marking paint

　　— Experimental Project for the Zhejiang Linjian Expressway (Section in Qianchuan Town, Lin’an District, Hangzhou)

　　For a long time, the safety of traveling on rainy nights has been a persistent concern for all road users. According to China’s 2007 statistics on road traffic accidents, 49% of serious traffic accidents occurred at night, and 46% of weather-related traffic accidents happened on rainy nights. Therefore, it is imperative to enhance... Marking paint The standard value for reflectivity meets the traffic safety requirements under all-day, all-weather conditions—particularly in adverse weather such as rain and fog—during both day and night. It also satisfies road performance requirements throughout the entire lifecycle of pavement use. Reflective lane markings , is an objective necessity.

　　The two-component spot-marking system adopted this time boasts a long service life—up to five years—and is suitable for various application scenarios. In particular, it offers long-lasting, high-brightness reflective performance in low-visibility conditions such as rain and fog.

　　High-refractive-index microcrystalline glass bead manufacturer for rainy nights— Mianyang Guangyao New Materials The Limited Liability Company, in collaboration with Zhejiang Oulude Transportation Technology Co., Ltd., jointly participated in the marking application pilot project for the Linjian Expressway in Zhejiang Province. The primary objective of this project is to enhance the overall reflectivity and service life of road markings and to equip them with long-lasting, high-intensity reflective performance under rainy and nighttime conditions. The equipment used for the project was a self-propelled, dual-component specialized dot-painting machine. The marking paint employed was a two-component type, and both the surface-applied and internally mixed glass beads were composite glass beads containing high-refractive-index microcrystalline glass beads with a refractive index of 2.4, specifically designed for rainy-night visibility. The consumption of surface-applied glass beads was approximately 500 g/m², and the internal mixing ratio of glass beads per kilogram of paint reached as high as 60%. The marked lines exhibited uniform and complete shapes, with a dot-painting coverage rate exceeding 60% per unit area and a dot-painting thickness greater than 5 mm. The surface-applied glass beads were evenly distributed, and their settling and adhesion properties both reached ideal levels. Initial tests of the newly applied markings—conducted using both domestically produced and imported instruments—showed a retroreflective coefficient of over 1,000 (mcd·m⁻²·lx⁻¹). After simulated rainfall, the retroreflective coefficient remained above 1,000 (mcd·m⁻²·lx⁻¹). Following the opening to traffic, continuous monitoring and testing will be carried out to track the performance of the markings over time.