Natural Rubber

ASTM Designation: NR

Standard Colour: Black

Description: Natural Rubber is the only naturally grown rubbery material. It is made from drying of Latex (also known as Rubber milk) of Hevea brasiliensis tree.

Chemical Structure:

natural rubber Structure

Standard operating temperature Range: -50 OC to +80 OC

Hardness Range: 40 – 90 Shore A

  • Excellent physical properties - high tensile strength, high resilience, high abrasion resistance, high tear properties
  • Excellent dynamic properties
  • Poor chemical, oil, solvent resistance properties
  • Poor heat resistance
  • Poor weather, ozone, UV resistance
  • Although allergic, Natural rubber can be used for certain FDA applications.
  • Tyre treads and other components of tyres.
  • General purpose mouldings, extrusions etc.
  • Thin walled, soft products such as balloons, surgical gloves, contraceptives etc