- 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