• Chemical Resistance Chart - Elastomers
• Phelps Glossary
• Pipe Size ID
  • Ring Gaskets 150lb
  • Ring Gaskets 300lb
  • Full Face Gaskets 150lb
  • Full Face Gaskets 300lb
• General Properties of Elastomers
• Fluid Compatibility of Elastomers
• General Age Resistance of Elastomers
• Fluid Compatibility of Metals
• Standards Speifications Guides
• Conversion Charts
• O-Rings Material Comparison

E = Excellent     G = Good F = Fair             P = Poor	Nitrile (Buna-N)	Hydrogenated Nitrile	Ethylene Propylene	Fluorocarbon (Viton)	Neoprene (Chloroprene)	Butyl (Isobutylene)	Silicone	Fluorosilicone	Polyacrylate	Styrene - Butadiene	Natural Rubber
ASTM Material Designator	NBR	HNBR	EPDM	FKM	CR	IIR	VMQ	FVQM	ACM	SBR	NR
Material Relative Cost	$	$ $ $ $	$ $	$ $ $	$ $	$ $	$ $ $	$ $ $ $	$ $ $	$	$
Compression Set	E	E	E	E	G	G	G	G	P	G	E
Resilience (Rebound)	G	G	G	G	G	F	G	G	F	G	E
Tear Strength	G	E	G	G	G	G	F	F	F	F	E
Heat Aging	F	G	G	E	F	G	E	E	E	F	F
Ozone	P	G	G	E	G	G	E	E	G	P	P
Oil & Grease	G	G	P	E	G	P	F	E	E	P	P
Fuel	P	F	P	G	P	P	P	G	E	P	P
Water Swell	G	G	E	G	F	G	E	E	P	E	E
Gas Impermeability	G	G	F	G	G	E	P	P	F	F	F
Abrasion	G	G	G	F	G	G	P	P	G	E	E
Standard High Temp	212°F	300 °F	300 °F	390 °F	250 °F	250 °F	450 °F	400 °F	300 °F	212 °F	220 °F
Standard Low Temp	-22 °F	-22 °F	-60 °F	5 °F	-40 °F	-75 °F	-75 °F	-75 °F	-40 °F	-50 °F	-60 °F
Special High Temp	250 °F	-	-	-	-	-	480 °F	-	-	-	-
Special Low Temp	-60 °F	-40 °F	-	30 °F	-	-	-	-	-	-	-
E = Excellent          G = Good             F = Fair              P = Poor