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Advantages
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Special Attention Natural rubber is easy to age in air, sticky in heat, easy to expand and dissolve in mineral oil or gasoline, alkali resistant but not resistant to strong acids, (but resistant to vegetable oil). Therefore, Transportation NR Rubber Seals are very suitable for our daily life. |
Materials Description
NR (Natural Rubber) refers to natural rubber, which is an elastic material extracted from the emulsion of the rubber tree (Hevea brasiliensis). The following are some characteristics and applications of NR rubber
Features
- Elasticity and softness
NR rubber has good elasticity and can return to its original shape after being stressed. It is also very soft and easy to process and plastically deform.
- Wear resistance
NR rubber has excellent wear resistance and good resistance to friction and wear.
- Tear resistance
NR rubber has high tear resistance and can withstand certain stretching and tearing forces.
- Cold resistance
NR rubber can still maintain good elasticity and softness in low-temperature environments and is not easy to become brittle.
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Physical Properties |
Rating (Metric) | Rating (Imperial) | Test Method |
| Specific gravity | 1.11 g/cc | 1.11 g/cc | |
| Mechanical Properties | Rating (Metric) | Rating (Imperial) | Test Method |
| Shore Hardness (Shore A) | 55 | 55 | |
| Tensile strength (yield) | 14.0 MPa | 2030 psi | |
| Elongation (break) | 450 % | 450 % | |
| Tear strength | 27.0 kN/m | 154 pli | |
| Wear | 120 | 120 | mm<sup>3</sup>; 5 N Load |
| Permanent compression | 25% @Temperature 70.0 °C, Time 79200 sec |
25% @Temperature 158 °F, Time 22.0 hours |
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| Thermal Performance | Rating (Metric) | Rating (Imperial) | Test Method |
| Maximum operating temperature, Air | 85.0 °C | 185 °F | |
| Minimum operating temperature, Air | -50.0 °C | -58.0 °F |
Products Application
Tire industry
NR rubber is one of the important raw materials for tire manufacturing. Due to its good elasticity and wear resistance, NR rubber is widely used in the manufacture of various types of tires for cars, trucks, motorcycles, and bicycles.
Industrial seals
NR rubber can be used to manufacture various industrial seals, such as O-rings, sealing gaskets, and retaining rings. It has good elasticity and sealing properties and is commonly used in automobiles, mechanical equipment, and piping systems.
Industrial tape and hose
NR rubber can be used to manufacture various industrial tapes and hoses, such as conveyor belts, transmission belts, water pipes air pipes, etc.
Plastic and rubber products
NR rubber can be blended with other materials (such as plastics and synthetic rubber) and used to make various rubber products, such as gloves, rubber shoes, glue, tape, etc.
Medical devices and healthcare products
Due to its biocompatibility and softness, NR rubber is commonly used in the manufacture of medical devices and health care products, such as medical gloves, catheters, and elastic support bands.
Sports Equipment
NR rubber is widely used in the manufacture of various sports equipment, such as table tennis, golf balls, basketballs, and swimming fins.
In addition to the above-mentioned applications, NR rubber is also used in construction and household products, electronic equipment, aerospace, and other fields. It is widely used in many industries because of its excellent physical properties and plasticity.
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