Environmental Polyurethane Grouting Hydrophobic Waterproof Material

• Overview
• Product Parameters
• PU Grouting Materials Type
• PU Grouting Step
• The Related Materials
• Products Usage
• Packaging & Storage
• Company Profile

Overview

Basic Info.

Material	Polyurethane
Usage Method	Spray
Main Usage	Water Stop,Outdoor
Appearance	Liquid
Density/g/cm3	1.0-1.2
Solid Content /%	75-90
Foaming Capacity/%	500-10000
Transport Package	18kg/Drum
Specification	18kg/200kg/Customized
Trademark	VICUSVIDA
Origin	China
Production Capacity	10000tons/Year

Packaging & Delivery

Package Size57.00cm * 57.00cm * 90.00cm Package Gross Weight18.000kg

Product Description

VPU-2 Hydrophobic Oil Grouting Materials for Waterproof Plugging and Reinforcement Repair of Concrete Leakag

IntroductionVPU-2 is one component hydrophobic PU grouting material, it reacts with water and expand to be a foam does not dissolve in the water. Not only used for waterproof plugging, but also with effect of reinforcement. It is widely used in subway tunnels, water conservancy andhydroelectric power, basement parking, sewage etc for waterproof plugging and reinforcement projects.
Characteristics 1,With good hydrophobic properties, high chemistry stability. 2,With larger Penetration radius and solidification volume ratio, react with water quickly with large expansion pressure, pushing the liquid to the depths of crack and expand to form a tenacity consolidation. 3,Resistance of acid, alkali and organic solvent, better resistance of chemical corrosion; 4,Coating smooth, wear-resisting, no mildew ; 5,Excellent adhesiveness with concrete base and other construction materials; 6,Viscosity and cure speed can be changed according to the requirement of projects.

Product Parameters

1	Appearance	Brown Viscous Transparency Liquid
2	Density/g/cm3	1.10-1.2
3	Viscosity a/mpa.s	400-800
4	Curing Time a/s	300-600
5	Solid Content /%	85
6	Foaming Capacity/%	2000-3000
7	Compressive Strength b/mpa	8-9
Remark: a Agreed by both customers&supplier; b Item tested while reinforcement requirement

PU Grouting Materials Type

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

PU Grouting Step

There are two main types of PU grouting methods: low-pressure injection and high-pressure injection. The advantage of polyurethane foam injection lies in its ability to enable the liquid polymer to be injected into the crack. This injection process ensures that the crack is fully saturated with the liquid polymer until the liquid starts to accumulate on the adjacent surface.
The repair of concrete structures is carried out by injecting a liquid polymer that hardens upon drying. High-pressure injection is applicable in areas where there is a large amount of water flow, such as basements, rooftops, swimming pools, and walkways.
First, a hole is drilled into the ceiling of the lower floor. Then, depending on the type of ceiling structure, the PU grout is injected through this hole using either low or high pressure. Once the grout is injected, it will expand to fill the voids or cracks that are caused by water damage.
Polyurethane foams are categorized into hydrophilic and hydrophobic types. Both hydrophilic and hydrophobic foams react with the water present in the crack. Additionally, they can also be mixed with water just before the injection process. A hydrophilic foam system will trap any excess water within its structure during the foam formation process. Both types can be formulated to be flexible, but generally, a hydrophilic system is more resilient compared to a hydrophobic one. However, hydrophobic formulations have been developed to be as resilient and flexible as hydrophilic ones while not being prone to shrinkage over time.
It is crucial to avoid installing gels in expansion joints or cracks that are likely to move. Gels form a solid material without a cellular structure, which means they cannot disperse tension under compression. This lack of tension dispersion can cause the gel to split and damage the seal, making it extremely difficult to repair in the long run.
In the present day, grouting will still retain its significance as one of the simplest, most cost-efficient, and durable repair solutions available.

The Related Materials

Products Usage

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

Company Profile