One Component Polyurethane Water Swelling Sealant

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$2.80 - $2.90 / Pieces | 1000 Piece/Pieces (Min. Order)
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Quick Details
Place of Origin:
Beijing, China (Mainland)
Brand Name:
Model Number:
Product name:
Water swelling sealant
Swell meet with water
600ml, 310ml
Supply Ability
Supply Ability:
10000 Kilogram/Kilograms per Month
Packaging & Delivery
Packaging Details
By carton box

One Component Polyurethane Water Swelling Sealant 


It is one-component, polyurethane,water swelling sealant


Easy operation

Excellent adhesive to different surface

Good expiation rate to protect fresh concrete during solidifying


Water swelling

Durable water sealing

Various products for different task


Applied in waterproof structure,cross section of fix water stop or LW preventive injection hose.


Construction joint

Pipeline and concrete iron in wall or cement board

Surrounding the concrete iron or joint

Inner joint of cable


Preventive injection hose: type LWRI, I and II

Cross section of water stop


Base surface must be sound, clean, dry, no oil or dust,etc.

Clean all practical, demolding agent, bleeding cement, old coating film and other loose animals.

Construction Conditions

Min+5℃ Max +35℃

Base surface. Temperature.     Min+5℃ Max.+35℃

Environment Temperature.    Min+5℃ Max.+35℃

Base surface humidity    Dry and no visible water


Applied for fixing water stop or placing injection hose.

Apply the sealant on base surface, if base surface is not flat, nozzle size need to be changed.

Fix water stop and injection hose to the sealant. Concreting 2 hours after sealant solidify.

Applied for sealing of the construction joint

Clean Tools

clean all the tools and equipment when process finished 


LW swell sealant will expand some hours after water contact. It is not allowed to stay a long time in water (water draining complete in 24 hours) before concreting.

Placing  the sealant in movable crack is not allowed.

When water level rise, the sealant expand and sealed the crack.

In drying condition, the sealant shrinks to original size; but will re-expand when touching water.

Suggest to apply the sealant under less than 2 bar pressure  (test pressure is 5 bar) because of sealing width limit.

If the pressure is high than 2 bar, the sealant can be used to fix the injection hose.

Standard  DB11/581-2008

Shelf time: 12 months  (sealed packing, Temperature. +5℃---+25℃, drying condition)


600ml (20 branch/box) 310ml (24 teams/box)

Company Information

Beijing Langwei Times Technology & Science Co.,Ltd. was established in 2004 and specializes in the pretreatment of civil construction special parts. We are a professional and innovative company with strong independent R&D capabilities. Our products are widely applied to subways, municipal administrations, tunnels, reservoirs, hydro dams and mines.

As an expert company in this field, we are always exploring the pretreatment product research of civil construction, later maintenance, maintaining technology and optimization and innovation of technology, getting fruitful results. In the last years, we have insisted on improving the product quality and customers' value, to promote powerful, steady development of enterprise.

Our offerings include waterproof product systems, grout product systems, grouting equipment systems and waterproof material systems. Our successful projects include the subways in Beijing, Hangzhou, Shenzhen, Ningbo, Chengdu and Shenyang, hydropower stations in Danjiangkou, Xiangjiaba and Tingzikou, mines in South Africa, and other domestic and overseas first-class civil construction and public buildings.

We aim to provide high-quality products and value-added technical service for global customers.To begin sourcing, contact us today. 

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