Rubber Property Comparison Chart   RATINGS: E=EXCELLENT G=GOOD F=FAIR P=POOR   PRINTABLE VERSION Property/Material BUNA-N NITRILE EPDM HNBR HYPALON NATURAL RUBBER NEOPRENE PVC/NBR PURE SILICONE SILCONE BLEND URETHANE XNBR Tensile Strength F F E G G-E G-E G P F E E Hardness Range 20-100 25-90 45-98 45-85 30-100 10-95 20-80 35-95 40-90 10-100 45-95 Relative Cost E E P G E G E F G F G Max. Service Temp. Deg. Farenheit 250 350 350 300 212 250 250 500+ 400 212 275 Ozone Resistance P E E E P F-G G E E E P Cut Resistance F F E F-G G G F P* F E E Abrasion Resistance F-G F E G G-E G-E G-E P* F E E Tear Strength F F E G G G G P* F E E Resistance to: Compression Set F-G G G F F G P E G F-G F Heat Build Up P F-G G P-F E E P G-E F E P ASTM #1 Oil E P E F-G P F-G E G P E E ASTM#3 Oil E P E F P F E F P E E Reference Fuel B G-E P G P P F G-E P P E G Ketones: MEK P E F F E F P F E P P Aromatics: Toluene G-E P E P P P-F G P F E G Aliphatics: Hexane E P G G P G E P P E E Ethyl Acetate P-F E P F E G P G G P-F P Cellosolve F E F G E E P E G P-F P Methylene Chloride P P G-E P E P P F F P P Trichloroethylene P P G-E P P P P P F P P DiethyleneGlycol E E G-E E E E E E E G G Isopropyl Alcohol G-E E E E E G-E E G E G G-E Water (75 deg. F) G E F E E G G-E G G-E G G Caustics: 10% NaOH G-E G G-E E E G-E G E G-E P G Acids: H2S04 F E G E G G G F G P G *Note: At elevated temperatures, these properties equal or exceed those of most other elastomers. The above are general guidelines. Please contact Mid American Rubber for specific recommendations and availability of other materials.

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