Natural rubber is a polymer of isoprene. Has good wear resistance, high elasticity, tensile strength and elongation.But still it has some drawbacks like-
1- Get damaged under the action of strong acid, ozone, oils, greases and fats.
2- Not recommended for use in alcohols, esters, or among the aromatic solution.
3- Low temperature properties.
4- Higher raw material prices.
5- Does not apply to hot water being.
6- Cannot be used in power transmission systems.