Comparative Properties of Rubber

Elastomer	Gum/Natural	Neoprene	Nitrile/Buna-N	Silicone	Viton/Fluorel	EPDM	Chlorobutyl	Hypalon
Chemical Name	Poly Isoprene	Polychloroprene	Butadiene Acrylonitrile	Poly-Siloxane	Fluorinated Hydrocarbon	Ethylene Propylene Di-Amine	Chloro-Isobutylene Isoprene	Chloro-Sulfonated Polyethylene
Sp. gr. of Basic Polymer	0.93	1.23	1.00	1.14-2.05	1.85	0.86	0.92	1.12-1.28
Hardness Range Shore A	30-90	40-35	40-95	40-85	55-95	40-90	40-75	40-95
Max. Service Temperature	85°C	105°C	115°C	240°C	205°C to 315°C	150°C	150°C	130°C
Abrasion	Excellent	Excellent	Good	Poor	Good	Good to Excellent	Good	Excellent
Oil	Poor to Good	Good	Very Good	Good to Excellent	Excellent	Good	Poor	Good
Ozone	Poor to Fair	Very Good/Excellent	Fair	Excellent	Outstanding	Outstanding	Excellent	Outstanding
Water	Fair to Good	Fair	Fair to Good	Fair	Fair to Good	Excellent	Good	Fair
Acid	Good to Very Good	Good	Good	Fair	Excellent	Excellent	Good to Excellent	Very Good to Excellent
Tear Strength	Good to Very Good	Good	Fair	Poor	Fair to Good	Good	Good	Fair
Tensile Strength	Excellent	Good	Good to Excellent	Poor	Good to Excellent	Good to Excellent	Good	Fair
Compression Set	Good	Fair to Good	Good	Fair	Fair to Good	Poor to Fair	Fair	Fair
Adhesion to Fabric	Excellent	Excellent	Good	Excellent	Good to Excellent	Good	Good	Excellent
Adhesion to Metal	Excellent	Excellent	Excellent	Excellent	Fair to Good	Good to Excellent	Good	Excellent