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double component polysulphide sealant for highway and airport runway

FOB Price: US $2 - 10 / Kilogram | Get Latest Price
Min.Order Quantity: 500 Kilogram/Kilograms
Supply Ability: 10000 Kilogram/Kilograms per Month
Port: Tianjin or Shanghai
Payment Terms: T/T
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Quick Details

CAS No.:
Other Names:
Polysulfide sealant
Place of Origin:
Beijing, China (Mainland)
Double Components Adhesives
Main Raw Material:
Brand Name:
Model Number:
sealing horizontal and vertical movement joints
black and white
mixed rate:

Packaging & Delivery

Packaging Details: each 6 barrel in a carton, include A,B two component , total 25kg/carton
Delivery Detail: Within 2 days


1.Two component polysulphide sealant
2.Mainly used for flexible joints in Subway,highway pavement
3.ISO9001 quality control


LangWei® 503 is a two-component polusulphide based joint sealant basically for sealing horizontal and vertical movement joint in concrete and pavements. When the two component are mixed and it forms tough, flexible durable rubber with strong adhesive property on most building substrates and joints 



1.  Two component polysulphide sealant

2.  High resilient with excellent recovery characteristics

3.  Permanent and uniform watertight seal

4.Used for flexible joints in Subway,highway pavement,Airport Runway, reservoirs 

5.  Excellent resistance to fatigue and stays flexible throughout its service life-won’t become brittle, caulk or crack due to ultra violet exposure

6.  Prevents uncontrolled cracking by allowing expansion and contraction during temperature changes

7.  Excellent adhesion to most common building substrates

8.  Good resistance to ageing. Retains joint soundness once cured

9.  Resistance against mild chemicals, hydrocarbon fuels, sea water

10. Non-toxic, can be used in potable water applications, swimming pools and tank


Field of application:

1. Sealing of movement and flexible joints

2. Structure floor joints

3. Airport runway and apron pavement

4. Industrial warehouse

5. Garages & workshops

6. Swimming pool floors

7. Tank and reservoirs

8.Underground project( Tunnel, Sewer) and Subway


Technical property:



Proportion g/cm2


working Life    h


Drying time of Surface h


Exudative Index


Rheology, Drooping Degree mm


Brittleness in Low Temperature °C


Tensile Adhesion, Maximum Elongation %


Recovery Rate%


Damage area through bonding by tensile-compression cycle performance%


Weight loss on heating%



Joint Size:

Joint size may range from a minimum of 5mm to a maximum of 50mm wide. Joint with cyclic movements should have a width: depth ratio of 2:1 and designed so as total movement does not exceed the 25% MAF related to the joint width.

Sealant depth shall not exceed joint width


Minimum sealant depth recommended

  • 5mm for metals, glass and other impervious surfaces.
  • 10mm for all porous surfaces.
  • 20mm for joints exposed to traffic and hydrostatic pressures.
  • 5mm below flush for joints exposed to traffic.

Joint Preparation:




Concrete & Masonry

Surface must be clean and dry. Wire brush thoroughly and remove dust and all contaminants



Remove any corrosion or millscale by grit or shot blast, wire brush, grinder or chemical remover. Degrease the surfaces with clean cloths soaked in oilfree cleansing solvent


Wood surfaces must be clean and dry. Cut back or abrade where necessary to sound timber

Glass and Glazed


Thoroughly clean the surfaces with clean cloths soaked in oil-free cleansing solvent

Coated Surface

Where feasible, coatings should be removed and the surfaces treated as above


Packing Details:

6 small barrel in a carton, totally 25kg one carton, include 5 barrel A part and 1 barrel B part


Storage Life:

The storage life is at least 12 months, but the material should be used before the date stamped on the container. Storage temperature range is 5~35°C(41~95°F) in original unopened containers. Storage in dry conditions.



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Welcome to Beijing Long Way Times Science & Technology Co., Ltd, the home of high-performance building materials as well as the innovation of service and construction process in China and your first choice for superior quality and unrivalled service.

Established in 2004, Long Way Times now is the member of Chemical Grouting Sub-Committee, Chinese Hydraulic Engineering Society, the Director Member of Waterproof Sub-Committee and China Construction Industry Association. The product... View detail

Basic Information

Business Type: Manufacturer, Trading Company  
Main Products: Sealant,Injection Hose,Polyurethane waterproof coating,Caulking Gun,Bentonie Waterstop  
Number Of Employees: 11 - 50 People  

Trade & Market

Main Markets: South Asia
Southern Europe
Northern Europe
Central America
Western Europe
Eastern Asia
Mid East
Southeast Asia
Eastern Europe
South America
North America
Total Annual Sales Volume: US$2.5 Million - US$5 Million  
Export Percentage: 81% - 90%  

Factory Information

Factory Size (Sq.meters): Below 1,000 square meters  
No. of Production Lines: Above 10  
Number of R&D Staff: 5 - 10 People  
Number of QC Staff: 5 - 10 People  
Contract Manufacturing: OEM Service Offered  

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How It Works

China (Mainland) | Manufacturer, Trading Company | Contact Details
Experience: Established 2004 , 5 years OEM

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Ms. beryl Li
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