Ground & underwater engineering
Ground & underwater engineering
Hydrophilic Polyurethane Grout - Water-Reactive Injection Resin for Gushing Leaks
Water-triggered polyurethane resin that self-emulsifies into elastic gel, sealing active leaks with CO₂-driven expansion pressure. 3Minute Water Stop -Gel time ≤180s with 10x water. CO₂-Powered Expansion - 350% foaming rate forces resin into voids. Flow Through Resistance - Won't wash out under 15L/min flow. One Part Simplicity - No mixing; activates on water contact. Structural Flexibility - 30% elastic recovery after movement.
Review technical parametersSINO-SINAHydrophilic Polyurethane Grout - Water-Reactive Injection Resin for Gushing LeaksVerified product main image pending
Product overview
Performance and application overview.
Technical parameters
Original product values for technical screening.
Values are reproduced without keyword editing. Final selection must follow the current approved technical data sheet, test method and project conditions.
The source page publishes a value or range but does not identify it as a minimum or a typical result. It is therefore retained as a published value pending TDS confirmation.
| Property | Requirement (Type I) | Test Value |
|---|---|---|
| Density (g/cm³) | ≥1.00 | 1.05 |
| Viscosity (mPa·s) | ≤1000 | 820 |
| Gel Time (10x water, s) | ≤180 | 150 |
| Non-Volatile Content (%) | ≥78 | 82 |
| Water Absorption | ≥20x | 22x |
| Key Performance | ||
| Foaming Rate (%) | ≥350 | 380 |
| Water Expansion (%) | ≥30 | 35 |
| Curing Profile | ||
| ▶ Initial Set | - | 45 seconds |
| ▶ Full Cure | - | 3 minutes |
| CO₂ Expansion Pressure | - | 0.8 MPa |
Product usage
Application and installation guidance.
Project Case Studies：
Three Zhanghewan Dam Seepage Control Project When 20L/min leaks threatened dam stability:
00:00 - Resin injected at 3MPa pressure
00:00 - Resin injected at 3MPa pressure
00:45 - CO₂ expansion initiated → 350% volume increase
00:45 - CO₂ expansion initiated → 350% volume increase
03:00 - Elastic gel formed → leakage reduced by 98%
03:00 - Elastic gel formed → leakage reduced by 98%
24h - Full cure achieved (0.9MPa adhesion to wet concrete)
24h - Full cure achieved (0.9MPa adhesion to wet concrete)
Construction Guide
For Success
Drill at 45° angle toward water source
Drill at 45° angle toward water source
Maintain ≥15MPa injection pressure
Maintain ≥15MPa injection pressure
Space ports at 20-30cm intervals
Space ports at 20-30cm intervals
Avoid Failures
Never inject against water flow
Never inject against water flow
Don't exceed 40°C substrate temperature
Don't exceed 40°C substrate temperature
Industry-Specific Solutions
Technical enquiry
Check whether Hydrophilic Polyurethane Grout - Water-Reactive Injection Resin for Gushing Leaks matches your project.
Include foundation type, grout geometry and volume, strength ages, flow requirement, temperature, standards, placement distance and equipment.