Elastomer Selection Guide

Elastomer	Natural	Neoprene	Nitrile	Styrene Butadiene	Ethylene Propylene Diene	Fluoro- Elastomer	Urethane	Epichloro Hydrin	Silicone	Carboxy- Lated Nitrile
ASTM Designations	NR	CR	NBR	SBR	EPDM	FKM	AU-EU	ECO	MQ	X-NBR
Durometer Range (Shore A)	20-95	20-95	20-95	30-95	30-90	55-90	25-95	40-90	30-80	40-95
Tensile Strength (Max PSI)	3500	2500	2500	2500	2000	2000	6000	2000	1500	6000
Resilience	E	G-E	G	G	G-E	F-G	G	G	F-E	F
Compression Set	G	F-G	G	G	G	F-G	F	P	F-G	F-G
Low Temperature Resistance F	-70	-65	-60	-70	-70	-40	-80 to -120	-75	-90 to -180	-60
High Temperature Resistance F	220	250	300	250	275	650	220	350	550	250
Abrasion Resistance	E	G	G	G-E	G	G	E	F-G	P	E
Tear Resistance	E	G	F	F	P	F	E	F-G	P	G-E
Flame Resistance	P	G	P	P	P	E	P	F	F-G	P
Weather Resistance	P-G	G-E	P-G	P-F	E	E	G-E	G-E	E	P-G
Ozone Resistance	P	G-E	F	P	E	E	E	E	E	E
Oil Resistance	P	G	E	P	P	E	G	E	F	E
Key Characteristics and Comments	High Tensile and Tear Resistance	Excellent Flame and Water Resistance	Excellent Oil and Fuel Resistance	High Abrasion Resistance	Excellent Ozone Resistance	Excellent Heat Ozone and Chemical Resistance	High Tensile & Abrasion Resistance Au(Esters) Have Different Fluid Resistnace than Eu(Esters)	Excellent Fluid and Temperature Resistance	Broad Service Temperatutre Range	Excellent Abrasion, Oil and Fluid Resistance

P = Poor, F = Fair, G = Good, E = Excellent, Other Polymers and their characteristics are available upon request.

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SINCE 1950 AT SAME LOCATION