Natural Rubber exhibits:

Superior Dynamic Properties (Resilience, Tensile, Elongation) • Excellent Abrasion Resistance • Excellent Fabric & Metals Adhesion

WARCO Natural Rubber

Select any of these drop down options to learn more about Natural Rubber.

General Information

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

  • Actual shelf life could vary dramatically based on storage conditions
  • Store in a cool, dry place with temperature below 75°F
  • Keep away from direct heat or open flames
  • Avoid contact with solvents or other fluids
  • Do not store in direct sunlight
  • Keep products wrapped or sealed to minimize the absorption of moisture
  • Store in a relaxed condition free from tension, compression or other deformation

See Rubber Storage Conditions for more information on how to properly store your rubber products

Natural Rubber Products

Natural Rubber is a good gasket material due to excellent physical properties. Natural rubber has superior resilience, tensile, elongation and abrasion resistance, good low temperature flexibility and compression set and excellent adhesion to fabric and metals.

Our Natural Rubber Products are available in Commercial Grades or as a specialty product.

Please Select a Natural Rubber Product Below:

Commercial Grade

Protein Free (Synthetic Polyisoprene) Natural Rubber

Durometer: 40 Temperature Range: -40°F to +160°F
Specs: ASTM D2000 1AA, FDA Approved Ingredients per 21 CFR 177.2600

Natural Rubber (Black)

Durometer: 40 to 60 Temperature Range: -40°F to +160°F
Specs: ASTM D2000 M1AA

Specialty Natural Rubber

Tuff–Stuff® Natural Rubber

Durometer: 40 Temperature Range: -40°F to +160°F
Specs: ASTM D2000 M4AA

EZ Cut Non–Floating Gum Natural Rubber

Durometer: 40 Temperature Range: -40°F to +160°F
Specs: ASTM D 2000 1AA, FDA Approved Ingredients per 21 CFR 177.2600

Pure Gum Floating Natural Rubber

Durometer: 40 Temperature Range: -40°F to +160°F
Specs: ASTM D 2000 1AA, FDA Approved Ingredients per 21 CFR 177.2600

Data presented here was gathered from several sources including Uniroyal Chemical Company, Inc., The Los Angeles Rubber Group, Inc., and Compass Publication

Our rubber products are a proprietary blend of various polymers formulated to meet stated physicals and specifications. The named product polymer is not necessarily the primary polymer representing the highest percentage of the polymer blend. Determination of the suitability of the goods for the uses and applications contemplated by Buyer and others shall be the sole responsibility of the Buyer or user. No guaranty is given with respect to length of service on any particular application. Suggestions or recommendations made by Seller in its product literature concerning uses or applications of the goods are believed to be reliable, but Seller makes no warranty or guaranty of results to be obtained since the conditions of the use and application by Buyer and others are beyond Seller’s control.

View complete Terms & Conditions of Sale for suitability of use and formulations