Singapore Underground Concrete Leakage Repair Case Study: Customized PU Grout and Acrylate Grout Solution by YURU
Customer Background
YURU Waterproof has developed long-term cooperation with overseas waterproofing partners by providing injection grouting materials and waterproofing solutions for different construction applications.
This case study introduces a cooperation with a Singapore waterproofing contractor specializing in underground leakage repair projects.
The customer focuses on solving water leakage problems in concrete structures, including underground areas that require reliable injection waterproofing solutions.
Before cooperation, the customer was looking for suitable grouting materials that could meet local project requirements and provide stable performance under real construction conditions.
Instead of choosing materials only based on product information, the customer preferred to test samples first and evaluate their performance for local applications.


Project Requirement: Selecting Suitable Injection Waterproofing Materials
Understanding the Challenges of Underground Concrete Leakage Repair
Underground concrete structures often face complex waterproofing challenges.
Water can enter through:
- Concrete cracks;
- Construction joints;
- Small gaps inside concrete structures;
- Weak points caused during construction.
These leakage paths are difficult to repair through surface treatment alone.
For many underground repair projects, engineers need injection waterproofing methods that can reach internal leakage channels and create a sealing effect.
Customer Requirements for Waterproof Injection Materials
Singapore contractor needed a reliable material solution for local waterproofing projects.
The main requirements included:
- Suitable waterproof performance;
- Good material compatibility with project conditions;
- Stable quality for repeated applications;
- Technical support during product selection.
Customer wanted more than a standard product supply.
They needed a supplier who could understand the actual project situation and recommend suitable materials.
Customer Provided Project Conditions Before Sample Testing
Project Information and Local Application Requirements
Before placing an order, the Singapore contractor shared detailed project conditions with YURU.
The customer provided information related to:
- Existing leakage conditions;
- Concrete structure situation;
- Required waterproofing performance;
- Local project application requirements.
This information helped YURU understand the actual application environment.
Instead of directly recommending a general product, YURU analyzed the project requirements first.
Customized Material Recommendation Based on Engineering Conditions
Different leakage problems require different injection materials.
A material that works well for one project may not be the best choice for another application.
Based on the customer’s requirements, YURU evaluated suitable injection grouting options and recommended an acrylate grout solution for initial testing.
The cooperation process followed a practical engineering approach:
Customer Provides Project Conditions
↓
YURU Analyzes Application Requirements
↓
Recommend Suitable Injection Material
↓
Prepare Sample for Testing
↓
Customer Evaluates Performance
↓
Bulk Supply After Approval
This approach helped reduce material selection risks before large-volume purchasing.


Customized Acrylate Grout Sample Development and Testing
Initial Product Selection: Acrylate Grout
At the beginning of cooperation, the Singapore contractor contacted YURU regarding acrylate grout.
The customer did not immediately place a large order.
Instead, the customer requested samples for local testing.
This testing process allowed the contractor to evaluate whether the material matched their project requirements.
Sample Testing Based on Customer Requirements
YURU provided customized samples according to the customer’s application conditions.
The focus was not only on supplying a product sample.
The goal was to provide a suitable material solution for the customer’s waterproofing projects.
During the communication process, YURU discussed:
- Application conditions;
- Material characteristics;
- Suitable usage methods;
- Project requirements.
After testing, the customer confirmed that the acrylate grout performance met local project expectations.
Moving from Sample Testing to Bulk Purchasing
After successful sample evaluation, the customer started purchasing acrylate grout in larger quantities.
This transition showed that the customer recognized:
- Product reliability;
- Stable supply capability;
- Technical communication support.
The cooperation then developed from initial testing into regular product supply.
Expanding Cooperation with YURU PU Grouting Materials
Expanding Product Cooperation Based on Different Project Requirements
After the successful testing and bulk purchasing of acrylate grout, the cooperation between YURU and the Singapore waterproofing contractor continued to grow.
During later projects, the customer faced different leakage conditions that required additional injection grouting solutions.
Based on these project requirements, the customer expanded product purchasing to YURU polyurethane grout series.
The cooperation developed from a single material purchase into a wider waterproofing material partnership.
Selecting PU Grout for Concrete Leakage Repair Applications
PU grout became another important product category in the customer’s waterproofing projects.
Polyurethane grout is commonly selected for applications that require:
- Water leakage sealing;
- Concrete crack injection;
- Underground waterproof repair;
- Joint leakage treatment.
Compared with the initial acrylate grout cooperation, PU grout provided another option for projects with different leakage conditions.
YURU communicated with the customer to understand project requirements and recommend suitable polyurethane grout solutions.


Material Selection Based on Different Leakage Conditions
Choosing the Right Injection Material for Different Problems
Injection waterproofing does not follow a one-material-for-all approach.
Different leakage conditions require different material characteristics.
The selection process should consider:
- Crack size;
- Water condition;
- Structural movement;
- Required waterproof performance.
Acrylate Grout for Fine Crack and Penetration Requirements
Acrylate grout is suitable for applications where penetration ability is important.
Typical applications include:
- Fine cracks;
- Small leakage paths;
- Complex underground waterproofing conditions.
Its application focuses on reaching small spaces and improving waterproof sealing performance.
PU Grout for Water Leakage Sealing
PU grout is commonly used for concrete leakage repair.
It is suitable for:
- Active water leakage;
- Concrete crack injection;
- Underground structures;
- Construction joint sealing.
For many waterproof repair projects, polyurethane grout provides a practical solution because it can be injected directly into leakage paths.
YURU Injection Material Selection Guide
| Project Condition | Recommended Material |
| Fine cracks requiring deeper penetration | Acrylate Grout |
| Active water leakage repair | PU Grout |
| Concrete crack waterproof sealing | Polyurethane Injection Grout |
| Structural crack strengthening | Epoxy Injection Grout |
The correct material selection helps contractors improve repair results and reduce repeated maintenance.
Long-Term Cooperation Between YURU and Singapore Waterproofing Contractor
Building Trust Through Product Performance and Support
After successful product testing and project applications, the Singapore contractor established a stable cooperation relationship with YURU.
The cooperation continued through:
- Regular product purchasing;
- Technical communication;
- Different project material requirements.
The customer continued selecting YURU injection grouting materials for waterproofing applications.
From Product Supplier to Long-Term Material Partner
For waterproofing contractors, stable material supply is important.
They need a supplier who can provide:
- Consistent product quality;
- Reliable production capacity;
- Technical communication;
- Flexible product solutions.
YURU continues supporting the Singapore customer by providing suitable waterproofing materials for different project needs.
Future Factory Visit and Continued Cooperation
Based on the long-term cooperation relationship, the Singapore customer plans to visit YURU factory this year.
The factory visit will help the customer understand:
- Production processes;
- Quality control procedures;
- Manufacturing capability;
- Product development capability.
This further strengthens the cooperation between YURU and the Singapore waterproofing contractor.


Why Choose YURU Injection Grouting Materials?
Professional Injection Grouting Manufacturer
YURU Waterproof specializes in manufacturing waterproofing materials, injection grouting materials, and floor coating systems.
The company provides solutions for:
- Concrete crack repair;
- Underground waterproofing;
- Leakage control;
- Infrastructure maintenance.
Complete Injection Grouting Product Range
YURU provides different injection grouting materials for various applications.
Product categories include:
Including:
- Hydrophobic PU grout;
- Hydrophilic PU grout;
- PU foam grout.
Applications:
- Water leakage repair;
- Concrete crack injection;
- Underground waterproofing.
Applications:
- Fine crack penetration;
- Underground waterproofing;
- Complex leakage repair.
Applications:
- Concrete crack repair;
- Structural bonding;
- Strengthening applications.
Customized Material Support for Overseas Projects
One important part of this cooperation was customized material selection.
YURU does not only provide standard products.
The company supports customers through:
- Project condition analysis;
- Sample preparation;
- Product recommendation;
- Application communication.
This allows overseas contractors to select materials based on actual project requirements.
Factory Direct Supply and Quality Control
As a waterproofing material manufacturer, YURU controls:
- Raw materials;
- Production process;
- Quality inspection;
- Product consistency.
This helps overseas partners receive stable materials for continuous projects.
FAQs:
PU grout is mainly used for waterproof repair applications, including concrete crack injection, underground leakage repair, and construction joint sealing.
The customer wanted to confirm that the material matched local project requirements before large-volume purchasing.
Sample testing helped evaluate product performance under actual application conditions.
PU grout is commonly used for water leakage sealing and concrete crack injection.
Acrylate grout is often selected for applications that require deeper penetration into fine cracks and small leakage paths.
Yes.
YURU can support customers with project-based material recommendations, sample preparation, packaging customization, and technical communication.
Yes.
YURU supplies injection grouting materials to overseas contractors, distributors, and construction partners.
Conclusion: Customized Injection Waterproofing Solutions for Global Contractors
This Singapore underground concrete leakage repair case shows how YURU supports overseas waterproofing contractors through technical communication and suitable material selection.
The cooperation started with acrylate grout sample testing.
After the product performance met local project requirements, the customer began bulk purchasing.
Later, based on different project needs, the customer expanded cooperation with YURU polyurethane grout products.
This long-term partnership demonstrates the importance of:
- Correct material selection;
- Customized product support;
- Stable manufacturing capability.
YURU continues providing injection waterproofing solutions for contractors, distributors, and project partners worldwide.
Contact YURU for polyurethane grout, acrylate grout, and customized injection grouting solutions for your waterproofing projects.

