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Simriz®

Chemical Resistance
For Valves, Flanges, O-Rings and Seals

KEY
PF75	Perfluoroelastomer (Simriz®)
FKM	Fluoroelastomer (Viton®)*
EPDM	Ethylene-Propylene (EPDM)

RATING SYSTEM
A	Little or no effect (Volume swell <10%)
B	Possible loss of physical properties
C	Noticeable change (Volume swell 20-40%)
U	Not suitable for service

CHEMICAL RESISTANCE		PF75	FKM	EPDM
ACIDS
	Acetic Acid, Glacial	A	C	A
	Hydrochloric Acid	A	A	A
	Hydrofluoric Acid	A	A	C
	Nitric Acid	A	A	B
	Trichloroacetic Acid	A	C	B
INORGANIC BASES
	Potassium Hydroxide	A	U	A
	Sodium Hydroxide	A	B	A
ALCOHOLS/ETHERS
	Isopropyl Alcohol	A	A	A
	Methyl Alcohol	A	U	A
	Tetrahydrofuran	A	U	C
AROMATIC HYDROCARBONS
	Benzene	A	A	U
	Toluene	A	A	U
ALIPHATIC HYDROCARBONS
	ASTM Oil #3	A	A	U
ESTERS
	Dimethylphthalate	A	B	B
ALDEHYDES/KETONES
	Acetone	A	U	A
	Methyl Ethyl Ketone (MEK)	A	U	A
AMINES
	Aniline	A	C	A
	Ethylenediamine	B	U	A
CHLOROCARBON SOLVENTS
	Carbon Tetrachloride	A	A	U
	Methylene Chloride	A	B	C
	Trichloroethane	A	A	U

*Viton® is a registered trademark of DuPont Dow Elastomers

Simriz® is highly regarded for valves and flanges resistance to chemicals in the Chemical Processing and Petroleum refining industries, and also for valves and flanges in the Semiconductor industry.