O-ringen FFKM (evolast®)

FFKM materialen zijn chemisch en thermisch de meest belastbare elastomeren. Met een aantal FFKM-types zijn temperaturen van iets meer dan 300°C beheersbaar. De bestendigheid tegen chemicaliën is nagenoeg universeel en vergelijkbaar met die van PTFE. Het voordeel van FFKM ligt in de verbinding van de chemische en thermische bestendigheid van PTFE met de elastische eigenschappen van elastomeermateriaal.

Deze speciale elastomeren worden overal gebruikt waar hun hoge prijs door overeenkomstige veiligheidseisen of hoge onderhoudskosten gerechtvaardigd is en er van standaardelastomeren teveel gevraagd wordt.

Standaard compounds:

Evolast N894 (equivalent van Kalrez 6375)
Evolast N896 (equivalent van Kalrez 4079)

FFKM is goed bestand tegen:

Nagenoeg alle chemicaliën
Ozon, weersomstandigheden, veroudering

FFKM is niet bestand tegen:

Fluorhoudende verbindingen

Gebruikstemperatuurbereik:

-15°C tot +270°C
met speciale kwaliteiten is -40°C resp. +340°C bereikbaar

Materiaal naam	Compound	Hardheid	Kleur	Temperatuur	Temperatuur	Equivalent van	Beschrijving
		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 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 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 FDA USP Class VI 3A-Sanitary Standard chemical resistance
evolast® B895	2180-10303	80 (A)		-15	+300	(G75 S) Perlast® G80H	high temperature FDA USP Class VI 3A-Sanitary Standard chemical resistance
evolast® N694	2170-10302	60 (A)		-25	+270		standard applications chemical resistance
evolast® N794	2170-10302	70 (A)		-25	+270	Simriz® 491	standard applications 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
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	Kalrez® 4079 Isolast® J8325 - J9876 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® 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® T695	2160-10304	60 (A)		-15	+275	Perlast® G74P	high purity plasma applications chemical resistance
evolast® T795	2170-10306	70 (A)		-15	+275	Kalrez® 9100 Parofluor® 8712	high purity plasma applications 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	2180-10307	80 (A)		-20	+260		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 compression set
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
evolast® N697	2160-10303	60 (A)		-40	+260		FDA 21 CFR 177.2400 excellent for low temperature chemical resistance