General Information

Common Name:

Natural Rubber

Chemical Name:

Polyisoprene

Generally Resistant To:

Abrasion, Flex-Cracking, Impact, Water, and Staining

Generally Attacked By:

Solvents, Flame, Weather, Ozone, and Sunlight

ASTM D 2000 / SAE J200 Classification:

AA

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

RN

ASTM D-1418 Designation:

NR

Physical Properties

Elongation:

500% to 900%

Hardness Range (Durometer Shore A):

30 to 85

Mechanical Properties

Compression Set:

Excellent

Resiliance Rating:

• Cold:

  Excellent

• Hot:

  Excellent

Flex Cracking Resistance:

Excellent

Abrasion Resistance:

Excellent

Tear Resistance:

Very Good

Impact Resistance:

Excellent

Flame Resistance:

Poor

Thermal Properties

Minimum Service Temperature:

-70°F

Maximum Service Temperature:

+180°F

Environmental Resistance

Recommended Shelf Life:

3 years

Weather Resistance:

Poor to Fair

Sunlight Resistance:

Poor

Ozone Resistance:

Poor

Oxidization Resistance:

Good

Water Resistance:

Very Good

Steam Resistance:

Fair to Good

Gas Permeability:

Fair to Good

Radiation Resistance:

Fair to Good

Chemical Resistance

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