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