Dongguan Pustar Adhesives & Sealants Co., Ltd.

China Manufacturer with main products: Sealant, Adhesive, Pu Sealant, Polyurethane Sealant

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Pu Sealant Lejell220 for Construction


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Place of Origin: Guangdong in China

Specifications

Lejell 220
1.      TECHNICAL DATA SHEET:

Testing Items
Performance
Appearance
Black/White/Gray homogeneous paste
Density(g/cm3)
1.35±0.05
Sagging properties(mm)
0
Elongation at break(%)
≥600
Volatile content(%)
≤4
Stretch modulus (Mpa)
>0.4
Touch dry time(min)
≤180
Elastic recovery rate(%)
≥85
Extrudability   (ml/min)
≥80
Pollution properties
Non
Application temperature(℃)
 +5~+35
Shelf life(month)
9
 
Note:
①All data above ware tested under standardized condition.
②All data listed in the chart were series; please refer to the related datasheet for special items.
③Strentch modulus here is for 60% modulus.
④Storage condition has a direct impact to the products’ shelf life, Please refer to the instruction for special items’ storing.

2.      DESCRIPTION:
Lejell 220 is a multifunction gun grade polyurethane based construction sealant, it is of high modulus and cures by reaction with atmospheric moisture to form a soft rubber like material with moderate elasticity and hight adhesion strength.
 
3.   USES:
·Suitable for joints where high resistance to penetration and pressure are required.
·For joints where low movement capacity are required.
·Joints in paving,airport and bridge runway.
·Seams on water pipe(back to water).
 
4.      ClEANING:
Clean and dry all surfaces by removing foreign matter and contaminants such as oil dust, grease, frost, water, dirt, old sealants and any protective coating. Dust and loose particles should be cleaned.
 
 
 
5.PACKAGING:
* 310ml cartridge, 20 pcs/carton
* 600ml/400ml sausage, 20 pcs/carton
 
6.APPLICATION:
Minimum application temperature: 5°C.
Lejell 220 should be dispensed from either the cartridge or sausage by means of a caulking gun. Pierce the membrane at the top of the cartridge and screw on the nozzle. Cut nozzle to give the required angle and bead size. Place the cartridge in an applicator gun and squeeze the trigger. For sausages, a barrel gun is required, clip the end of the sausage and place in barrel gun. Screw end cap and nozzle on to barrel gun. Using the trigger extrude the sealant, to stop depress using the catch plate. Apply Lejell 220 in a continuous bead using enough pressure to properly fill the gaps.
 
 
7.ADVANTAGES:
* mildew proofing, Meet national standard for sealing of drinking water pipe.
* One component, no need of mixing.
* Easy for applying.
* excellent elasticity and adhesion strength.
* Excellent durability, weathering resistance..
* Self bonding, easily for repairing.
* three kinds of colour available.
* 600, 400 cc aluminium foil packaging, 310 cartridge package for choice.
* Can be painted and abraded.
 
8.ADVICE:
* For common occasion, after cleaning out the surface with organic solvent, this product can be used directly.
* Please construct by application instructions strictly, failure of stickiness may be caused by any operation disobeying construction techniques.
* This product is innocuous after curing completely, but before set, please avoids contacting with eyes and skin. In case of eyes and skin contact, wash immediately and thoroughly with soap and water. See doctor immediately if it is serious.
 
 

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