Buna® CB 1220

Buna® CB 1220 is a Cobalt catalysed butadiene rubber with a high 1,4-cis content and a broader molecular weight distribution with a high degree of branching. This polymer structure allows easy processing during the production of high-quality rubber goods. The product can be used in sidewall and tread compounds for tires. Further typical applications are conveyor belts, golf balls, footwear soles, etc. Buna® CB 1220 can be blended with NR for goods having thick sections, high resistance to reversion and high abrasion resistance.
Mooney Viscosity 40 MU ISO 289 / ASTM D 1646 ML (1+4) 100 °C
Cis 1,4 Content > 96 % Internal Method
Density 0,91 g/cm³ ASTM D 297
Stabilizer Non staining
Packaging 35,6 kg bales wrapped in PE film; 36 bales in a metal box (1281,6 kg)
Storage Conditions The product should be stored dry and at temperature < 35°C. Exposure to light has to be avoided.


Buna® CB 1220 Product Data Sheet Product Data Sheet Download
Buna® CB 1220 Safety Data Sheet Safety Data Sheet Download

Additional Information

Supply Form Bales
Storage Life Conditions The product should be stored dry and at temperature < 35°C. Exposure to light has to be avoided.

Standard Packaging

  • Bales
    Supply form Bales
    Bale weight 36 kg
    Length 712 mm
    Width 356 mm
  • Film wrap
    Type PE
    Thickness 40 μm
    Colour Transparent
    Tmelt <113 °C
  • Returnable metal box
    Length 1465 mm
    Width 1150 mm
    Height 1098 mm
    Inner-liner Black PE 60 microns
  • Number of bales
    Per Layer 6
    Layers 6
    Per skid 36
  • Weights
    Net 1282 kg
    Tarr 137 kg
    Gross 1419 kg

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