TP640-220/400 Water Swelling Polyurethane Sealant
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TP640-220/400 Water Swelling Polyurethane Sealant

Polyurethane Water-Swelling Sealant are a one-component,water-swelling elastomeric sealant. Polyurethane Water-Swelling Sealant is based on the prepolymer of polyurethane and contains a special water-swelling unit. Polyurethane Water-Swelling Sealant has elastic rubber sealing water and double-sealing sealing mechanism of water expansion and water-stopping after water. Polyurethane Water-Swelling Sealant is suitable for waterproofing of concrete construction joints.Anti-leakage of various types of embedded components.
 
Ideal for tunnels, subways, underground structures, and sewage tanks, this non-toxic, drinking-water-safe sealant offers a cost-effective alternative to traditional waterstop tapes or strips. Easy to apply using standard caulking guns, it delivers lasting, environmentally friendly waterproofing for construction joints, pipe penetrations, and structural leaks.
  • TP640-220/400

  • TENGYU

  • 310ml 600ml

  • White,Black,Grey etc.

Availability:
Quantity:
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Polyurethane Water-Swelling Sealant Technical Data

Model

TP-220

TP-400

Solid   Content  ≥85%

99.2

99.8

Density (g/cm3)

1.33

1.4

Sagging(mm)≦2

0

Tack free time(h) ≤24

4.4

2.5

7d   Tensile Adhesive Strength (MPa)  ≧0.4

1

0.8

Low temperature flexiblility

No Cracking

Tensile   Strength (MPa) ≧0.5

3.98

2.8

Elongation at break  ≧400%

621

807

Volume   expansion ratio

326%

422%

Long-term soaking volume expansion ratio   retention ) ≧90%

99

101

Water   pressure resistance (no water seepage)

No   water

No   water

Thickness after full dry(mm) ≧2

2.52

3.2

Harmful   material limit

VOC   g/L

16

The free toluene diisocyanate (TDI) g/kg

0


Polyurethane Water-Swelling Sealant Characteristics

  • Good water-stopping effect: it has the elastic sealing water of rubber and the double sealing water stopping mechanism of its own volume expansion and water stop after water,and can resist water pressure of 2.5MPa.

  • Good expansion: high expansion rate,reaching more than 220% or 400%.

  • Convenient construction: single component,glue,standard caulking gun can be used.

  • Construction tight&close: firmly attached to the concrete surface regardless of whether the base surface is wet, smooth or rough. 

  • Safe & non toxic: it is an environmentally friendly product in contact with drinking water.

  • Cost effective: The performance is better than the traditional construction joint waterproof material,such as steel edge rubber water-stop glue or tape,the price is reasonable.

Polyurethane Water-Swelling Sealant Typical Application

  • Railway tunnels,road tunnels,urban subways,underground structures of buildings,sewage treatment tanks,etc.

  • The construction joints of various underground structures are waterproof.

  • The underground structure is watered after the pouring.

  • All kinds of pre-buried pipelines,through-wall steel bars,H-beams,pile caps and other waterproof.

  • Various types of construction joints or structural cracks are leaked.


Polyurethane Water-Swelling Sealant Safety & Storage

  • Keep contents out of reach of children.

  • 12 months stored at dry below25°C unopened in original containers.


Packing and delivery

  • OEM are available

OEM

Packing Color Qty/Ctn Ctn/Plt
600ml White,Black,Grey etc. 20 sausages 75 Ctns
310ml White,Black,Grey etc. 20 cartridges 100 Ctns


Company Profile

COMPANY

TENGYU Sealants solution expert


Tengyu Chemical (Longkou) Co., Ltd is a trusted provider of high-quality sealant solutions. With a wide range of products including acrylic, silicone, MS polymer, and polyurethane sealants, we offer reliable solutions tailored to meet diverse industry needs. Experience our commitment to quality and customer satisfaction today.




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