VPU-2
Hydrophobic PU Grouting Materials
Introduction
VPU-2 is a common one-component hydrophilic polyurethane grouting material. The composite poly
polyol reacts with the polyisocyanate to form a hydrophilic chemical grouting material terminated
by isocyanate.
It reacts rapidly with water, solidifies and expands the closed crack, thereby achieving
Quickly stop the water. This product is milky white elastic colloid after reaction with water. It has the
advantages of high speed, high strength, small shrinkage and strong impermeability. It is widely
used in waterproof tunneling projects such as subway tunnels, water conservancy and hydropower,
underground garages and sewers.
Characteristics
1.Low viscosity, quick reaction in water, forming impervious elastic colloidal concretion body by reaction
with good water sealing performance.
2.Reacting with water, it forms ivory elastic colloidal concretion body, which has the advantages of high
compressive strength, low temperature resistance,good elasticity and penetration proof quality.
3.Good effect on mixing with water. The product can penetrate into crack deeply and the crack can be
sealed thoroughly by concretion body.
4.Good dilatability,big water content ,good water affinity and groutability, meanwhile the viscosity and
curing speed can be adjusted according to customer's requirement.
5.It can be widely used in waterproof projects such as DAMS, subway, tunnel etc.
Typical Performances
| No. | Test Item | Specification |
| 1 | Appearance | Light Yellow Transparent Liquid |
| 2 | Density/g/cm3 | 1.0-1.2 |
| 3 | Viscosity /mpa.s | 150-350 |
| 4 | Gel Time /s | 10-100 |
| 5 | Solid Content /% | 75-90 |
| 6 | Foaming Capacity/% | 500-1000 |
| 7 | Expansion Rate with Water/% | 20-30 |
| 8 | Water Absorption Capability /10 Times of Water , s | 20-70 |
The Difference Between VPU-1 And VPU-2
Item | VPU-2
Hydrophobic PU Grouting Materials | VPU-1
Hydrophilic PU Grouting Materials |
| Characteristic | High Foaming Rate,Good Stability. And Fast Speed | High Solid Content,High Water Content, Low Shrinkage,Fast Speed |
| Reaction Time | 15-20 Minutes | 10-20 Seconds |
| Waterproof Features | Not Reacting with Water,Foaming, Displacing Water | Reacts With Water to Form a Solid State |
| Shortcoming | The reaction speed is slower than VPU-2 and the price is relatively higher | Long Time,Easy Evaporation of Moisture,and Easy Shrinkage of the Tire Body |
| Advantage | No Shrinkage,Good Stability | Fast Response Speed and Relatively Low Price |
| Construction Environment | No shrinkage,Good stability | There are no restrictions on the environment,whether it's dry,wet,or
open water |
Proposal | Experienced craftsmen offline generally use water-based and oil-based construction methods,regardless of the environment,whether it is dry or wet,with or without visible water,because its cost is relatively low,more stable |
The Products Details
The Scope of Application
1.Deformation Joints in construction Projects.
Deformation cracks,construction Joints,structuralJoints,Plugging and Reinforcement of structural
Cracks
2.Undergound Tunnel
Subway Tunnels,Subway.Platforms,Highway Tunnels.Railway Subgrade Tunnel walls
3.Ports and wharves
Bridge Piers,Dams.Hydropower Station Curtain Grouting.Plugging and Reinforcement
4.Leakage Plugging by Retaining Walls in Geological Driling
Selective Water Plugging in oil Exploration and water Gushing in Mines,etc.
Product Tags:
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Liquid VPU-2 PU Oil Hydrophobic Grouting Materials Images
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