Water-based Glass Ink for Rail Transit | Printing Solution for High-speed & Metro Window Glass
Rail transit vehicle glass requires far more stringent standards for safety performance, weather resistance and environmental protection grades than ordinary civil glass. Window, partition and interior glass of high-speed trains and metros operate under complex working conditions including alternating temperature differences, airflow erosion and high-frequency vibration. Meanwhile, the enclosed carriage space imposes strict requirements on flame retardancy, low volatility and odor-free performance of materials. As an eco-friendly and high-performance printing material, the special water-based glass ink is perfectly compatible with the deep processing, tempering and hot bending processes of rail transit glass, and is widely applied in the supporting production of domestic rail transit vehicle glass.
This rail transit dedicated water-based glass ink consists of two systems: high-temperature sintering type and low-temperature curing type, adapting to different processing procedures. The high-temperature type can be integrally formed with vehicle glass during the tempering and hot bending process at 600-850℃. The ink coating fuses deeply with the glass substrate, forming a dense and tough paint film after curing, which thoroughly solves common industry problems such as paint peeling, cracking, fading and poor wear resistance during long-term service of vehicle glass. The low-temperature curing type is suitable for secondary printing of finished interior glass without high-temperature processing. Featuring low volatility and no
pungent odor, it fully meets the environmental protection requirements for enclosed carriage spaces.
In terms of core performance, the product strictly complies with rail transit safety standards, reaching GB 8624-2012 Class B1 flame retardant grade with high flame resistance and low smoke density. Key indicators including oxygen index and smoke density conform to rail transit equipment procurement specifications to ensure driving safety. Adaptable to extreme working conditions, it withstands alternating high and low temperatures ranging from -30℃ to 80℃, avoiding cracking and peeling during long-term outdoor and on-board operation. With professional UV aging resistance test verification, it delivers excellent anti-aging and wind-sand erosion resistance for long-lasting service life.
In terms of printing adaptability, the ink features good leveling performance, no screen clogging and no wire drawing, supporting precision screen printing. It can accurately present fine patterns such as shading black borders of windows, warning lines, equipment logos and frame shading rings with clear edges, uniform coating and stable batch color difference. The paint film boasts superior adhesion and high hardness, resisting fading and delamination caused by daily alcohol wiping, rain erosion and vibration wear during operation.
Adopting an eco-friendly water-based formula, the product features no solvent residue, low VOC and zero odor, causing no pollution during production and processing. It not only meets the requirements of industrial green production, but also adapts to the high-standard living environment requirements of rail transit carriages. It is fully applicable to the printing of all types of rail transit glass, including side window glass, rear window glass, carriage partition glass, interior decorative glass and equipment observation windows of high-speed trains, urban rails and metros, serving as a preferred supporting material for deep processing of rail transit glass.
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