Buna® FX 3234A-2

Buna® FX 3234A-2 is a functionalised solution Styrene-Butadiene Rubber containing 34% of bounded styrene. The extension with 37,5 phr. TDAE extender oil allows for high molecular weights in the rubber increasing the treadwear resistance combined with easy processing. On the other hand, the slightly reduced viscosity allows easier processing. Buna® FX 3234A-2 is functionalized with polar end-groups to increase the interaction with silica fillers. This reduces the hysteresis inside the tread compound, thus reducing the rolling resistance of the tire. Typical applications are high performance tire treads. Important tire properties like grip and rolling resistance is enhanced. The high styrene content imparts a high level of dynamic stiffness making the grade especially suitable for high performance summer tires.
Mooney Viscosity 65 MU ISO 289 / ASTM D 1646 ML (1+4) 100 °C
Styrene Content 34 wt % Internal Method
Oil Content 27,3 wt % Internal Method
Vinyl Content 32 wt % Internal Method
Density 0,95 g/cm³ ASTM D 297


Buna® FX 3234A-2 Product Data Sheet Product Data Sheet Download
Buna® FX 3234A-2 Safety Data Sheet Safety Data Sheet Download

Additional Information

Supply Form Bales
Safety Relevant safety data and references as well as the necessary hazard warning labels are to be found in the safety data sheet.
Storage Life Conditions The product should be stored dry and at temperature < 35°C. Exposure to light has to be avoided.

Industries and Applications

Buna® FX 3234A-2 is used for

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