Natural Rubber
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Common Name
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Natural Rubber
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ASTM D-2000 Classification
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AA
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Military (MIL STD 417)
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RN
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Chemical Definition
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Polyisoprene
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General Characteristics
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Durometer Range (Shore A)
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20 - 100
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Tensile Range (P.S.I.)
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500 - 3500
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Elongation (Max. %)
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700
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Compression Set
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Excellent
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Resilience - Rebound
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Excellent
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Abrasion Resistance
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Excellent
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Tear Resistance
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Excellent
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Solvent Resistance
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Poor
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Oil Resistance
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Poor
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Low Temperature Usage (F°)
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-20° to -60°
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High Temperature Usage (F°)
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to 175°
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Aging Weather - Sunlight
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Poor
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Adhesion to Metal
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Excellent
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Comment
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Natural Rubber has many good characteristics. It has high resilience, good compressions set, food roll building behavior and molding properties; very good friction surface, but not a fine smooth surface when ground; high tear strength, low crack growth; usable for ketones and alcohol; and good low temperature properties.
Natural rubber is not recommended for oil and solvent resistance and ozone attacks it.
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