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Polyurethane Sealant for Construction Lejell220 High Modulus

Basic Info

Model No.:  Lejell220

Product Description

Model NO.: Lejell220

Morphology: Plaste

Material: Polyurethane

Main Agent Composition: Polyurethane Elastomer

Promoter Composition: Plasticizer

Color: White Grey Black

Transport Package: 40PCS/Carton

HS Code: 3214109000

Bonding Function: Waterproof Sealant

Application: Construction

Classification: Room Curing

Characteristic: Waterproof

Composition: Organic Material

Trademark: Pustar

Origin: China Mainland

220 is one-component, moisture curable Polyurethane Sealant. Good sealing and flexible performance. No corrosion and pollution to base material and environment-friendly. Pricking resistance, easy for repairing. Good bonding performance with cement and stone.

Product Features

One-component, excellent extrudability, no sag, easy construction.

High modulus, good anti-water pressure performance.

Areas of application

Suitable for areas where low movement, high resistance to penetration and pressure are required.

For water proofing of air face on bridges, tunnels and drainage pipe. For precast panel, concrete internal wall and stone bonding and sealing.

Data sheet

Items 220
Range Typical Data
Appearance White homogenous paste /
Extrudability ml/min
GB/T 13477.4
≥80 100
Sagging properties mm
GB/T 13477.6
0 0
Tack free time h
GB/T 13477.5
1~3 2
Volatile content %
GB/T 13477.19
≤4 3
Shore A-hardness
GB/T 531.1
40~50 45
Tensile strength MPa
GB/T 528
≥1.5 2.2
Elongation at break %
GB/T 528
≥500 600
Tensile modulus MPa
GB/T 13477.8
23ºC ≤0.4(60%) 0.50
-20ºC ≤0.6(60%) 0.70
Tensile properties at maintained extension
GB/T 13477.10
No failure No failure
Adhesion/cohesion properties at maintained extension after water immersion
GB/T 13477.11
No failure No failure
Adhesion/cohesion properties at variable temperature
GB/T 13477.13
No failure No failure
Elastic recovery rate%
GB/T 13477.10
≥70 85
Application temperature oC -40~90

All data above were tested under standardized condition at 23±2ºC,50±5%RH.

Direction for use

Remove dust, oil and water from the surface of substrates.

Tack free time and curing speed of polyurethane sealant influenced by environment temperature and humidity. Construction environment temperature: 5~35ºC, humidity: 50~70%RH.

For Construction method, please refer to PUSTAR construction description or consult technical personnel.


Keep away from children.

Avoid contacting with skin and eye. For skin contacted, remove the sealant by cloth, wash skin thoroughly with soap and water. For eye contacted, hold eyelids apart and flush thoroughly with water, contact physician.

Packing specification

Cartridge 310ml

Sausage 400ml

Sausage 600ml

Transport and storage

Transport: Keep away the sealed product from moisture, the sun, high temperature and avoid collisions..

Storage: Keep sealed into cool, dry place.

Storage temperature: 5~25ºC. Humidity: ≤50%RH.

Shelf life: 9 month.

Contact us if you need more details on Construction Sealant. We are ready to answer your questions on packaging, logistics, certification or any other aspects about High Modulus、Good Resistance to Water. If these products fail to match your need, please contact us and we would like to provide relevant information.

Product Categories : PU Construction Sealant