Urban metro systems play a critical role in modern transportation infrastructure, especially in rapidly developing cities. In Azerbaijan, a major metro construction and renovation project was initiated to improve underground transportation capacity, structural safety, and long-term operational reliability.
Due to complex underground geological conditions, the project faced persistent challenges related to groundwater seepage, concrete cracks, and joint leakage. These issues required high-performance injection grouting materials capable of sealing active water ingress while maintaining long-term durability under constant moisture and pressure.
To address these technical demands, the project contractor sought an experienced international supplier specializing in customized injection grouting solutions for underground infrastructure. After technical evaluation and material testing, YURU Waterproof was selected as the project’s trusted material partner.


The decision to cooperate with YURU Waterproof was based on several key advantages that aligned with the project’s strict technical and performance requirements:
YURU Waterproof has extensive experience supplying waterproofing and injection grouting materials to metro, tunnel, and underground infrastructure projects across Asia, the Middle East, Europe, and Central Asia. This international background gave the Azerbaijan client strong confidence in our ability to support complex metro environments.
YURU Waterproofing doesn’t simply offer a single product, we provide tailored material recommendations based on the project’s water pressure, crack conditions, and construction methods. Our technical team works closely with clients, providing sample testing results to ensure the selected grouting materials meet performance and application requirements.
With multiple advanced production lines and an ISO-certified quality management system, YURU Waterproofing ensures stable product quality, reliable supply, and on-time delivery, which is crucial for maintaining project schedules.
From product selection to application guidance, YURU Waterproofing provides comprehensive technical support to help contractors optimize grouting efficiency and mitigate on-site risks.
In this metro project, YURU Waterproofing Company provided a combined grouting system designed to address various leakage situations and structural conditions:
Polyurethane grouting material was used as the primary solution for active water leaks and dynamic cracks. Its rapid reaction, high expansion rate, and excellent elasticity allow it to effectively seal water ingress even under continuously wet conditions.
Key advantages include:
Acrylate grouting material was applied in areas requiring deep penetration and flexible waterproof sealing, particularly suitable for fine cracks, construction joints, and curtain grouting applications.
Key advantages include:
By combining the use of polyurethane and acrylate grouting materials, the project achieved a comprehensive waterproofing system, ensuring immediate water stoppage and long-term structural protection.


During and after the application process, the contractor reported excellent material performance and smooth on-site operation. The injection grouting materials demonstrated strong adaptability to the metro’s complex underground conditions and met all technical expectations.
According to the project team:
“YURU Waterproof’s injection grouting materials delivered stable and reliable performance throughout the metro construction process. The customized solution effectively solved our water leakage challenges, and the technical support provided was highly professional. We look forward to long-term cooperation with YURU Waterproof on future metro projects.”
Post-application inspections confirmed that water seepage was effectively controlled, contributing to improved structural safety and long-term durability of the metro system.
The successful application of YURU Waterproof materials in the Azerbaijan Metro project further demonstrates our strength as a global supplier of customized waterproofing and injection grouting solutions.
With exports to over 50 countries, YURU Waterproof continues to support contractors, distributors, and project owners by offering:
As urban infrastructure continues to expand worldwide, YURU Waterproof remains committed to delivering reliable, high-performance solutions for underground construction projects.

YURU Waterproof’s expert team brings together over 23 years of experience in waterproofing materials, injection grouts, and construction solutions. We share professional, reliable knowledge on waterproof coatings, grouting systems, and engineering project applications. Our goal is to help global contractors, wholesalers, and project owners achieve lasting protection and superior performance. Follow us and feel free to share your projects or experiences with us.
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