• It is also known as trans poly isoprene. It is the geometric isomer of natural rubber that is obtained from the trees of Malaya.
  • It freezes in cold conditions. It is not flexible, starts melting at 60 degree Celsius and  molded in this condition. At 100 degree Celsius, it melts completely


  • It is soluble in chloroform, ether and carbon di sulfide.
  • Insoluble in water


  • Tooth making, surgical goods, rubber goods, adhesives.
  • Gum making and tooth making

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