Diaphragm Properties	Silicone	Neoprene	Viton
Hardness Range	20-80	30-90	55-90
Tensile Strength (Max PSI)	1500	3000	2000
Tear Resistance	G	G	G
Abrasion Resistance	F	G to E	G
Flex Resistance	G	G	G
Electrical Resistance	E	E	G
Impact Resistance	F	G	G
Odor	G to E	G	G
Taste	G to E	F to G	F to G
Non-staining	E	G to E	F to G
Deformation Capacity	E	G to E	F to G
Elasticity	G to E	G to E	G to E
Resilience	G	E	F to G
Service Temp (°F)	-160° to 500°	-65° to 300°	-20° to 400°
Heat Age Resistance	E	G to E	E
Flame Resistance	E	G to E	E
Permeability to Gases	P	G	E
Resistance to:
Weather	E	G	E
Oxygen	E	E	E
Ozone	E	G	E
Radiation	F to G	G	F to G
Water	E	G	E
Steam	E	G	E
Alkalis	E	E	F to G
Acid	G	E	E
Oil, Gasoline, Kerosene	G	E	E
Benzene, Toluene	NR	P	E
Animal & Vegatable Oils	F	F	E
Oxygenated Solvents	F to G	F	NR
Halogenated Solvents	NR	P	E
Alcohol	G	E	G
Synthetic Lubes (diester)	NR	P	E
Silicate Hydraulic Fluids	NR	P	E
Phosphate Hydraulic Fluids	G	F	P
	E = Excellent | G = Good | F = Fair | P = Poor | NR = Not Rated