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JUNBOND JB238 Multifunction Polyurethane Sealant

Junbond® JB238 is One component, room temperature moisture curing Polyurethane Sealant.  It is low modulus, building joint sealant, good weather resistance, good elasticity,no harmful substances will be produced during and after curing, and there will be no pollution to the substrate.


Overview

Applications

Technical Data

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Application

 

1)Flexible jointing for precast panel, wood, metal, marble and PVC joinery seams, curtain wall, bakes clay, concrete roof tiles in constructing area.

2)Expansion joints in building, highway, tunnel, runway, water conservancy project.

3)Expansion jointing for other traditional construction.

Features

 

1)Good adhesion to most of substrates withoutprimer. Good weathering and UV resistance.

2)High flexibility Movement.

3) Paintable.

4)Excellent workability.

 

Packing

 

  • Cartridge:310ml                           
  • Sausage: 400ml and 600ml    
  • Barrel: 5 gallons(20L) and 55 gallons(200L)

 

Storage and shelf live

 

  • Transport: Keep away the sealed product from moisture, the sun, high temperature and avoid collisions.
  • Storage: Keep sealed into cool, dry place.
  • Storage temperature: 5~25℃. Humidity: ≤50%RH.
  • Cartridge and Sausage 9 month, barrel package 6 months

 

Color

● White/black/grey / customer required


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  • 1)Flexible jointing for precast panel, wood, metal, marble and PVC joinery seams, curtain wall, bakes clay, concrete roof tiles in constructing area.

    2)Expansion joints in building, highway, tunnel, runway, water conservancy project.

    3)Expansion jointing for other traditional construction.

     

     

    Items

     

    Typical Value

    Appearance Smooth, no air bubbles, no lumps
    solid content ≥96%
    Curing speed ≥2.0mm/24h
    Density 1.49±0.1 g/cm3
    Take free time(min) 20-30
    Curing speed (mm/d) ≥2.0mm/24h
    Tear Strength ≥4.5N/mm
    Shore A-hardness 27
    Tensile strength(MPa) ≥0.7MPa
    Elongation at break(%) ≥700%
    Application Temperature 5 – 40℃
    Temperature Resistance -45 – 90℃

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