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Freudenberg O-Ring and Seal Materials

Freudenberg Nitrile (NBR) O-Rings Compounds:

Compound Number	Datasheet	Hardness (Shore A)	Low Temp	High Temp	Color	Products
70 NBR 438		70 +- 5	-25	100	Black	Molded parts
85 NBR 436		88 +- 5	-25	100	Black	Molded parts

Freudenberg Hydrogenated Nitrile (HNBR) Compounds:

Compound Number	Datasheet	Hardness (Shore A)	Low Temp	High Temp	Color	Products
70 HNBR 254067		70 +- 5	-30	140	Green	Molded parts
75 HNBR 231142		75 +- 5	-35	140	Black	O-Rings
85 HNBR 216553		85 +- 5	-25	140	Green	Molded parts

Freudenberg Fluorocarbon (FKM) Compounds:

Compound Number	Datasheet	Hardness (Shore A)	Low Temp	High Temp	Color	Products
75 FKM 180497		75 +- 5	-25	200	Black	O-Rings
70 FKM 37508		75 +- 5	-25	200	Red	O-Rings, Molded parts, Diaphragms

Freudenberg Simriz® Perfluoroelastomer (FFKM) Compounds:

Compound Number	Datasheet	Hardness (Shore A)	Low Temp	High Temp	Color	Products
70 Simriz® 491		70 +- 5	-20	230	Black	Molded part, O-Rings
75 Simriz® 494		75 +- 5	-15	230	Black	Diaphragms on request, O-Rings
75 Simriz® 495		75 +- 5	-15	230	Black	O-Rings
75 Simriz® 497		75 +- 5	-15	325	Black	O-Rings
75 Simriz 506		72 +- 5	-15	230	White	Molded parts, O-Rings
80 Simriz® 492		80 +- 5	-10	230	Black	Molded parts
85 Simriz® 496		85 +- 5	-15	250	Black	O-Rings

Freudenberg Ethylene Propylene (EP, EPM, EPDM) O-Rings Compounds:

Compound Number	Datasheet	Hardness (Shore A)	Low Temp	High Temp	Color	Products
60 EPDM 290		65 +- 5	-40	150	Black	Diaphragms
70 EPDM 291		75 +- 5	-40	150	Black	Clamp seals, Diaphragms, Hygienic Usit®, Molded parts, O-Rings, CNC machined
70 EPDM 391		70 +- 5	-40	150	SBlack	Profiles, Cords
85 EPDM 292		85 +- 5	-40	150	Black	Molded parts, O-Rings, CNC machined
85 EPDM 302		85 +- 5	-40	150	Black	Molded parts
75 EPDM 253356		75 +- 5	-30	140	Black	Molded parts
70 EPDM 253815		70 +- 5	-40	150	White	Clamp seals, Molded parts, O-Rings, Hygienic Usit®
70 EPDM 217676		70 +- 5	-40	150	Blue	Hygienic Usit®
60 EPDM 334		60 +- 5	--	--	Black	Molded parts
70 EPDM 331		75 +- 5	-40	150	Black	O-Rings
70 EPDM 335		70 +- 5	-40	150	Black	Molded parts
85 EPDM 332	--	85 +- 5	--	--	Black	O-Rings

Freudenberg Silicone (VMQ) Compounds:

Compound Number	Datasheet	Hardness (Shore A)	Low Temp	High Temp	Color
78 VMQ 166898		78 +- 5	--	--	Light Blue
75 VMQ 176643		76 +- 5	--	--	Red
70 VMQ 117055		70 +- 5	--	--	Transparent

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