Water Soluble PU Grouting Waterborne Hydrophilic Polyurethane Grouting Material
Single Component Hydrophilic Polyurethane Grouting Fluid is a polymer chemical grouting material manufactured from hydrophilic polyether polyols and isocyanate. The material reacts with water to form an elastic colloidal solid, achieving superior water-stopping effects. This innovative high-pressure grouting material is specifically designed for waterproofing and leak-stopping applications.
Produced using advanced foreign technology, our polyurethane grouting material forms a high-elasticity, high-toughness gel with low shrinkage and compact structure after polymerization with water, followed by rapid foaming, expansion, and solidification. The product features exceptional self-repairing functionality through repeated foaming with water, delivering waterproof and leak-stopping effectiveness 2-3 times superior to traditional materials.
Our manufacturing facilities utilize internationally advanced technology and processes, implementing sophisticated R&D and quality management systems. From raw material procurement (PO/EO) to intermediate grouting material polymerization, from finished product compounding to final filling - all production processes are connected via pipeline transport with strict quality inspection and production control at every stage.
- Immediate chemical reaction upon contact with water, with self-dispersing, emulsifying, and foaming properties forming impermeable elastic colloidal solids with excellent water-stopping performance
- Rapid reaction time, high strength, and strong packing capabilities
- Gas pressure assistance enables grout to penetrate structural voids completely, ensuring thorough filling and compaction of porous structures
- Superior swelling properties, high water inclusion capacity, excellent hydrophilicity and filling characteristics with adjustable viscosity and curing speed
Strong toughness and excellent water-wrapping capabilities for superior performance in demanding applications.
| Type | Ι | Ⅱ | Ⅲ | Ⅳ |
|---|---|---|---|---|
| Water Coating Performance | 25 times up | 20 times up | 15 times up | 10 times up |
| No. | Test Items | Standard Regulations | Inspection Results | Evaluation |
|---|---|---|---|---|
| 1 | Appearance | Uniform Liquid, No Impurities, Non Layered | Qualified | |
| 2 | Density (g/cm³) | ≥ 1.0 | 1.05 | Qualified |
| 3 | Gel Time (s) | ≤ 18 | 15 | Qualified |
| 4 | Water Inclusion (10x Water) (s) | ≤ 25 | 20 | Qualified |
| 5 | Non-Volatile Content (%) | ≥ 76 | 81 | Qualified |
| 6 | Viscosity (mPa.s, 25℃) | ≤ 1.0×10³ | 500 | Qualified |
- Isocyanate content: 6.5-7.5%
- Water encapsulation (requires addition of L4, BT, and Ding):
- Type I (15x water): ≤ 50s
- Type II (10x water): ≤ 50s
- Type III (10x water): ≤ 50s
| Serial | Testing Items | Ⅰ | Ⅱ | Ⅲ |
|---|---|---|---|---|
| 1 | Appearance | Uniform Liquid, No Impurities, Non Layered | ||
| 2 | Viscosity (mPa.S, 25℃) | 200-400 | 200-400 | 200-400 |
| 3 | Density (g/cm³) | 1.00 | 1.00 | 0.95 |
| 4 | Coagulation Time (s) | 30 | ||
| 5 | Water Inclusion | 40 | 40 | 45 |
| 6 | Non-Volatile Content (%) | 75 | 75 | 70 |
| 7 | Frothing Percentage (%) | 350 | 350 | 300 |
Note: When conducting water-based central control, perform water inclusion testing first. Abnormal conditions such as white spots, translucency, or inability to contain water during testing indicate unqualified product, requiring simultaneous measurement of -NCO content.
- Sealing leaks in various buildings and underground concrete engineering cracks, expansion joints, construction joints, and structural joints
- Water shut-off in tunnels, roof reinforcement, and broken layer stabilization in coal mining and other mining operations
- Bridge foundation reinforcement and bridge crack repair
- Wear protective equipment (gloves, goggles) during construction to avoid direct skin contact. If contaminated, wash thoroughly with water
- Store product in cool locations. Ensure proper ventilation during construction and keep away from fire sources until material solidifies
- Stored in clean, dry, and sealed iron drums
- Transport according to regular product requirements, preventing rain, exposure, squeezing, and collision while ensuring packaging integrity
- Store in ventilated, dry, and cool locations away from direct sunlight and rain. Storage temperature should not exceed 40℃
- Shelf life: 9 months under normal storage conditions
| Type | Water Soluble | Oil Soluble |
|---|---|---|
| Features | High water content, high water inclusion rate, small shrinkage, fast speed | Large expansion rate, no shrinkage, good stability, fast speed |
| Reaction Time | 10-60 seconds | 3-6 minutes |
| Waterproof Features | Reacts with water to produce CO2 gas, forming solid structure | Reaction with water forms 10-30 times foam |
| Defect | Long-term water evaporation may cause foam shrinkage | Slower reaction rate compared to water-soluble types |
| Advantage | Fast response, no corrosion to RC structures and steel bars, cost-effective | No shrinkage, excellent stability, no corrosion damage to RC structures, higher price point |
| Application Range | Building basements, subways, tunnels, hydropower dams, petroleum and coal mining for reinforcement, anti-seepage and water blocking | Deformation cracks in building basements, structural joints, waterproof plugging and reinforcement of tunnel inner walls in subway and tunnel projects, railway roadbed reinforcement |
Lihong Technology continues to invest in advanced safety and environmental protection facilities, operating as a second-level enterprise for production safety standardization. Many products have achieved food-grade certification.
The company maintains quality as its fundamental principle, operating advanced quality management and information management systems to enhance product quality process control. Leveraging advanced technology and equipment, we actively create world-class product quality and corporate image.
With over 30 industry high-end talents and three R&D platforms (Jiangsu Technology R&D Center, Jiangsu Polyurethane New Material Engineering Technology Research Center, and Jiangsu Special Polyurethane New Material Engineering Research Center), Lihong Technology leads high-quality development through technological innovation.
Our intellectual property portfolio includes 5 invention patents, 22 utility model patents, with over 10 additional invention patents pending. The development of specific functional flame-retardant polyether polyols has been recognized as a key R&D project in Huai'an City.
- Worried about maintaining a seamless supply chain? As manufacturers, we maintain an 8000 square meter warehouse ensuring robust supply capacity
- Can't receive prompt replies? Our dedicated team and AI customer service operate 24/7 to address all inquiries
- Is finding product information difficult? Enjoy complimentary product samples and comprehensive test certificates
- Concerned about maintaining top-notch quality? We conduct rigorous technical inspections before each sale, guaranteeing highest quality standards
- Unfamiliar with the technology? Our expert consultants provide complimentary cutting-edge technical advice
- Is your forwarder unable to manage the goods? Our seasoned chemical export service team provides comprehensive declaration, transportation, insurance, and customs clearance services
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