Natural Rubber

Natural rubber, also known as latex, is a versatile and widely used material derived from the sap of the Hevea brasiliensis tree. It has been a vital resource for various industries due to its unique properties and applications. Natural rubber exhibits exceptional elasticity, making it ideal for the manufacturing of tires, belts, hoses, and various mechanical components. Its ability to stretch and recover its shape has made it indispensable in the automotive industry, where it provides excellent grip and durability, ensuring a smooth and safe ride.

In addition to its mechanical properties, natural rubber also possesses remarkable chemical resistance and electrical insulation capabilities. It resists the effects of acids, bases, and many organic solvents, making it suitable for applications in chemical processing plants and laboratories. Furthermore, its insulating properties have led to its use in electrical components such as insulation jackets, cables, and gloves, protecting against electric shocks and enhancing safety in various industries.

The sustainability of natural rubber is another significant aspect that has gained attention in recent years. As a renewable resource, it is biodegradable and can be sourced from responsibly managed plantations. Efforts are being made to promote sustainable cultivation practices, including biodiversity preservation and fair labor practices. The demand for sustainable rubber alternatives, driven by environmental concerns, has also spurred research into eco-friendly alternatives to natural rubber, such as bio-based or synthetic rubber. These efforts aim to reduce the environmental impact associated with rubber production while ensuring the continued availability of this valuable material.

Superior Dynamic Properties (Tensile Strength, Elongation, and Resilience)
Exceptional Metals and Fabric Adhesion
Great Resistance to Abrasion

Due to its great physical characteristics, natural rubber makes a fantastic gasket material. Natural rubber exhibits great low temperature flexibility and compression set as well as outstanding resilience, tensile, elongation, and abrasion resistance. It also adheres to cloth and metals very well.

Common Name:
Natural Rubber

Generally Resistant To:
Abrasion, Flex-Cracking, Impact, Water, and Staining

ASTM D 2000 / SAE J200 Classification:
AA

Chemical Name:
Polyisoprene

Generally Attacked By:
Solvents, Flame, Weather, Ozone, and Sunlight

MIL-R-3065 / SAE J-14 / MIL-STD-417 Classification:
RN

ASTM D-1418 Designation:
NR

Elongation:
500% to 900%

Hardness Range (Durometer Shore A):
30 to 85

Compression Set:
Excellent

Abrasion Resistance:
Excellent

Impact Resistance:
Excellent

Resiliance Rating:
Cold: Excellent
Hot: Excellent

Tear Resistance:
Very Good

Flame Resistance:
Poor

Flex Cracking Resistance:
Excellent

Minimum Service Temperature:
-70°F

Maximum Service Temperature:
+180°F

Recommended Shelf Life:
3 years

Ozone Resistance:
Poor

Steam Resistance:
Fair to Good

Weather Resistance:
Poor to Fair

Oxidization Resistance:
Good

Gas Permeability:
Fair to Good

Sunlight Resistance:
Poor

Water Resistance:
Very Good

Radiation Resistance:
Fair to Good

Acetone:
Minor to Moderate Effect

Amonium Hydroxide:
NOT RECOMMENDED

Animal Fats:
NOT RECOMMENDED

Carbon Dioxide:
Minor to Moderate Effect

Chlorine:
DRY: NOT RECOMMENDED
WET: NOT RECOMMENDED

Fluorine (Liquid):
– – –

Fuel Oil:
NOT RECOMMENDED

Gasoline:
NOT RECOMMENDED

Hydrochloric Acid 37%:
HOT: NOT RECOMMENDED
COLD: Minor to Moderate Effect

Hydrochloric Acid Concentrate 37%:
HOT: NOT RECOMMENDED
COLD: NOT RECOMMENDED

Kerosene:
NOT RECOMMENDED

Methyl Ethyl Ketone:
NOT RECOMMENDED

Mineral Oil:
NOT RECOMMENDED

Naptha:
NOT RECOMMENDED

Natural Gas:
Moderate to Severe Effect

Nitric Acid:
Concentrate: NOT RECOMMENDED
Dillute: NOT RECOMMENDED
Red Fuming: NOT RECOMMENDED

Petroleum:
Below 250: NOT RECOMMENDED
Above 250: NOT RECOMMENDED

Phosphoric Acid:
20%: Minor to Moderate Effect
45%: NOT RECOMMENDED

Propane:
NOT RECOMMENDED

Salt Water:
RECOMMENDED: Little or Minor Effect

Skydrol:
Skydrol 500: NOT RECOMMENDED
Skydrol 7000: NOT RECOMMENDED

Sodium Hydroxide:
RECOMMENDED: Little or Minor Effect

Sulfuric Acid:
Concentrate: NOT RECOMMENDED
Dillute: Moderate to Severe Effect
20% Oleum: NOT RECOMMENDED

Toluene:
NOT RECOMMENDED

Transformer Oil:
NOT RECOMMENDED

Vegetable Oils:
NOT RECOMMENDED

Vinegar:
Minor to Moderate Effect

  • Depending on the storage conditions, the actual shelf life could change significantly.
  • Store at or below 75 °F in a cool, dry area.
  • Keep clear from open flames or direct heat.
  • Stay away from contact with any liquids or solvents.
  • Store away from direct sunlight.
  • Keep goods sealed or wrapped to reduce moisture absorption.
  • Keep in a relaxed state free of tension, compression, or other deformation when storing.

For additional information on how to keep your rubber items appropriately, see Rubber Storage Conditions.

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