O-rings FFKM (evolast®)

FFKM materials are elastomers offering the highest chemical and heat resistance. Some FFKM types can be exposed to temperatures over 300°C. The resistance to chemicals is nearly universal and comparable to that of PTFE.

Standard compounds:

Evolast N894 (equivalent of Kalrez 6375)
Evolast N896 (equivalent of Kalrez 4079).

FFKM is well resistant to:

Almost all chemicals
Ozone, weather conditions, aging

FFKM is not resistant to:

Fluorine-containing compounds

Operating temperature range:

-15°C to +270°C
with special qualities: -40°C resp. +340°C accessible

Material name	Compound	Hardness	Colour	Temperature	Temperature	Equivalent for	Description
		shore		min. °C	max. °C
evolast® B694	2160-10301	60 (A)		-20	+270		FDA USP Class VI 3A Sanitary Standard Chemical resistance
evolast® B794	2170-10303	70 (A)		-20	+270	Kalrez® 6880 Kalrez® 6221 Perlast® G74S	FDA 21 CFR 177.2400 USP Class VI 3A-Sanitary Standard chemical resistance
evolast® B795	2170-10301	70 (A)		-15	+300	Perlast® G70H	high temperature FDA USP Class VI 3A-Sanitary Standard chemical resistance
evolast® B7LT	2170-10304	70 (A)		-40	+250	Simriz® 483 Chemraz®514	excellent low temperature conform FDA USP Class VI 3A-Sanitary Standard chemical resistance
evolast® B7SC	2175-10308	75 (A)		-20	+300	Kalrez® 8575	high temperature high purity plasma applications chemical resistance
evolast® B894	2180-10304	80 (A)		-20	+270	Chemraz® SD 517 Chemraz® 513-514	standard applications chemical resistance conform FDA
evolast® B895	2180-10303	80 (A)		-15	+300	(G75 S) Perlast® G80H	high temperature chemical resistance conform FDA
evolast® N694	2160-10302	60 (A)		-25	+270		standard applications chemical resistance
evolast® N697	2175-10303	60 (A)		-40	+260		FDA 21 CFR 177.2400 (global migration) excellent low temperature chemical resistance
evolast® N794	2170-10302	70 (A)		-25	+270	Simriz® 491 Kalrez® 6230	FDA 21 CFR 177.2400 USP Class VI 3A-Sanitary Standard chemical resistance
evolast® N7FD	2175-10305	75 (A)		-20	+270	Kalrez® 6230 Chemraz® SD625	FDA 21 CFR 177.2400 USP Class VI 3A-Sanitary Standard chemical resistance is being phased out N794 is the successor
evolast® N7HC	2170-10305	70 (A)		-20	+260		steam hot water amines chemical resistance
evolast® N7LT	2175-10301	75 (A)		-40	+250	Kalrez® 0040 Chemraz® 505	excellent low temperature chemical resistance
evolast® N775	2175-10309	75 (A)		-15	+340	Spectrum® 7075 Triazinico	high temperature outstanding thermal stability not suitable for steam/amine chemical resistance
evolast® N894	2175-10307	75 (A)		-25	+270	Kalrez® 6375 Chemraz® 605 Perlast® G80A Isolast® 9440 Simriz® 495 Parafluor® V8910-75	standard applications chemical resistance
evolast® N896	2175-10303	75 (A)		-15	+330	Isolast® J8325 Isolast® 9876 Chemraz® 615 Perlast® G75B Chemraz® 551	high temperature chemical resistance
evolast® N897	2175-10306	80 (A)		-30	+260	Isolast® J9503 Simriz® 481	low temperature chemical resistance
evolast® N8FD	2175-10310	75 (A)		-15	+315		high temperature FDA USP Class VI 3A-Sanitary Standard chemical resistance
evolast® N8LT	2175-10311	75 (A)		-40	+260		excellent low temperature chemical resistance
evolast® N8SR	2175-10304	75 (A)		-15	+330	Kalrez® 1050LF	steam hot water chemical resistance
evolast® N993	2190-10302	90 (A)		-20	+270		standard applications chemical resistance
evolast® N994	2190-10303	90 (A)		-30	+240	Chemraz® 510 Kalrez® 3018 Chemraz® 600	low temperature chemical resistance
evolast® N995	2190-10304	90 (A)		-15	+330		high temperature chemical resistance
evolast® N9ED	2190-10305	90 (A)		-15	+260 (+280)	Chemraz® 526 Isolast® J9510 Perlast® G90D	anti explosive decompression AED NORSOK M710 chemical resistance
evolast® N9EX	2190-10301	90 (A)		-15	+320(+340)	Kalrez® 7090	anti explosive decompression AED NORSOK M710 high temperature chemical resistance
evolast® N9LT	2190-10306	90 (A)		-40	+250(+270)		anti explosive decompression AED NORSOK M710 excellent low temperature chemical resistance
evolast® V7FD	2170-10307	70 (A)		-15	+270		standard applications FDA USP Class VI 3A-Sanitary Standard chemical resistance
evolast® V895	2180-10305	80 (A)		-15	+310		high temperature chemical resistance
evolast® B8HC		80 (A)		-20	+260	Kalrez® 6380	high temperature excellent for hot water / steam / amine
evolast® N994	2190-10303	90 (A)		-30	+260	Chemraz® 510 Kalrez® 3018 Chemraz® 600	suitable for low temperature chemical resistance
evolast® N7HC	2175-10312	75 (A)		-20	+260		superior service life in hot water, steam and amines excellent chemical resistance low compressionset
evolast® T795	2170-10306	70 (A)		-15	+275		very good properties without metal or carbon black filler high purity applications outstanding resistance to aggressive chemicals and high temp. good compression set