Different Models Reusable Grouting Hose Seal Concrete Cracks and Waterproof

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$4.50 - $8.50 / Meters | 100 Meter/Meters (Min. Order)
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Quick Details
Place of Origin:
Beijing, China (Mainland)
Brand Name:
Model Number:
Other Waterproofing Materials
Main Material:
Outside diameter:
19mm or 24mm
Life time:
Sealing concrete cracks, Waterproof
Supply Ability
Supply Ability:
10000 Meter/Meters per Month
Packaging & Delivery
Packaging Details
LW1: 19mm outer diameter Large packing: 200 m/volume Small packing: 50 m/volume
LW2: 24mm outerdiameter Large packing: 125m/volume Small packing: 30 m/volume
TianJin or ShangHai
Lead Time :
Within 10 days after receipt of the deposit


1.8 years experience
2.Credible quality
3.Delivery in time
4.Permanent preservation
5.Easy operation


LW Re-inject Is one of the specially designed solid PVC injection pipe systems. It can be mounted on the internal cement joint, used to waterproof and seal any gaps and holes on the joint area. It can seal joints then make them water-tight, if leakage appears in the future, we can also provide complete maintenance program. LW system can be used to repeated grouting when Portland cement, fine cement or acrylate grouting resin used. Using LW re-injection pipe system (Re - inject) can improve waterproof technology. The advanced grouting system can exactly realized “ zero leak”. In addition to its advantages of easy installation and reasonable price, LW system can also simplify the work and make sure the joints not leaking.




1.Can pass leaking test


Can confirm the sealing property of the construction joint at scene

Grout only when the joint leaking


2.Hose can be unlimited re-injected


If there are still crack or new cracks, hose can be grouted again, effectively reduce the complicated process of changing tools


3.Rigid core


Won't be pressed flat under concrete pressure so as to make the use of the grouting unobstructed


4. Resistance to chemical corrosion


Won't be corroded when contacting polyurethane, ethylene resin, epoxy resin or cement, the material is durable, Do not contain metal


Expediently placed in the corner, no need to cut and connect.




Subway, tunnel, Water and sewage treatment plants, Swimming pool and water amusement park, Nuclear power station, The dam, lock, canals, reservoir and ditch, Primary and secondary cofferdam facilities, Bridge,   Commercial and industrial buildings, garage, stadium, Aquarium, tank and similar structure

Work and design principle:




The first stage: water cement

Design principle(Re-inject)



After putting cement around LW repeatable injection pipe, the external pressure will make the chloroprene rubber belt fixed, and seal the grouting mouth and grouting channel.

Grouting pipe



Theinjection pipe solid lining is made from high quality of PVC. The inner can absorb cement pressure, ensure the grouting pipe work together.



Lateral staggered shedding ensure uniform release of the grouting material.


The second stage: grouting



The compressible chloroprene rubber belt in the longitudinal grooves is a unique and very important part. They play the valve's role when grouting and seal when cleaning.




Internal grouting pressure will form pressure for the neoprene rubber belt, and inject the grouting material from eight longitudinal gap. This makes the grouting materials release from the whole injection pipe can maintain uniform.



The third stage: clean the injection pipe


LW repeatable grouting system is the leading waterproofing system, and ensure that the joint 100% of water tightness. Its unique "valve" design makes LW become the only injection pipe system that can prevent fall leakage, repetitive grouting.



When using the grouting material which has got approval, LW repeatable injection pipe can be easily washed clean by water with vacuum pressure. Negative pressure can make chloroprene rubber belt reset, and prevent the injected material being absorbed into the grouting pipe during cleaning.



A series of characteristics and advantage


Repeatable grouting


Customer recognition



Wash by water or vacuum pressure,prepare for future use.

LW has been successfully used in the United States and the world and won the international recognition for 15 years.


Many grouting materials


Maintenance save worry


The fourth stage: prepare for the future grouting


LW system is suitable for a wide range of grouting materials.


The ability of repeatable grouting ensure that the building joints keep waterproof state in its life period.



Can grout again at any time if need.


Testing capability


Easy installation


LW system can be used to test water tightness for the already or not grouting joints. Just water LW repeatable injection pipe is ok.

LW is installed before the second grouting, and no need segmentation template.







  • Procedure:

Cut to the needed length


Injection pipe and discharge tube



telescopic line



LW repeatable injection pipe




Connection nozzle

Sealing plug, prevent pollutants getting into injection pipe


Connect fiber reinforced PVC discharge outlet with LW repeatable grouting tube ends by connecting pipe mouth, strong glue and expansion casing.



Install plug to the fiber reinforced discharge pipe to prevent impurities from getting into the injection pipe.

length of Injection hose





Two models are alternative:






Internal diameter


External diameter


Out hole

Gap between holes
















LW 1 Used for all standard building joint;


LW 2 If need more long injection pipe according to design reasons or if the upcoming cement mortar (Portland cement and mortar mixture) grouting, namely, as to design and application problems, please call Beijing Lang Wei times science and technology co., led.




LW1: 19mm outer diameter     Large packing: 200 m/volume     Small packing: 50 m/volume

LW2: 24mm outerdiameter      Large packing: 125m/volume      Small packing: 30 m/volume






Stored in a cover of place, avoid oil, dirt, concrete rubble, etc. getting into the hose.


Quality guarantee period:


Permanent preservation according to the recommended way, in the seal, original conditions.

Our successful project: