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High Modulus Construction Sealant for Joint Lejell 220 PU Sealant

Basic Info

Model No.:  Lejell 220

Product Description



Model NO.: Lejell 220


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.



Cautions

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

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