Natural Rubber - NR
Natural Rubber is a general purpose rubber with the optimum balance of physical properties essential for high performance engineering applications. It has a long fatigue life and high strength even without reinforcing fillers and is the first choice for spring applications. It can be compounded to give a wide range of hardness. Good low temperature flexibility, excellent elasticity with strong ensile and good elongation. Its chief disadvantage is its poor oil resistance and its lack of resistance to oxygen and ozone, although these latter disadvantages can be ameliorated by chemical protection.
The outstanding strength of natural rubber has maintained its position as the preferred material in many engineering applications. Other than for thin sections it can be used to approximately 100C, and sometimes above. It can maintain flexibility down to -60C if compounded for the purpose. It has good creep and stress relaxation resistance and is low cost.
General uses: Industrial products, rubber tubes, rubber belts.
While the technical information and suggestions for use contained herein are believed to be accurate and reliable, nothing stated in this bulletin is to be taken as a warranty either expressed or implied. It is the user's responsibility to determine suitability and fitness of application, preferably through independent prototype testing and field evaluation programs by users. There is no warranty of merchantability or fitness for use, nor any other warranty either expressed or implied.