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VPU-1 Single Component Waterbrone Hydrophilic Polyurethane Grouting Materials
for Waterproof Plugging and Reinforcement Repair of Concrete Leakage
Introduction
VPU-1 is a common one-component hydrophilic polyurethane grouting material. The composite
polyether polyol reacts
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VPU-1 is a common one-component hydrophilic polyurethane grouting material. The composite polyether 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 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 concretionbody, 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.
Product Parameters
| No. | Item | Test |
| 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 |
| Remark: a Agreed by both customers&supplier; b Item tested while reinforcement requirement | ||
The Difference Between VPU-1 And VPU-2
| Item | VPU-2 | VPU-1 |
| Characteristic | Hydrophobic PU Grouting Materials;High Foaming Rate,Good Stability.And Fast Speed | Hydrophilic PU Grouting Materials;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 | |
Scope of Apllication
1.Deformation Joints in Construction Projects Deformation Cracks,Construction Joints, Structural Joints,
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.
Packaging & Storage
All Series Supporting Facilites