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Kalrez® / FFKM

As the largest official DuPont ™ Kalrez ® distributor ERIKS has a broadest spectrum Kalrez ® products in its portfolio and available from the several warehouses.

Kalrez® parts last longer and seal more effectively than other elastomers in demanding processing environments.
DuPont™ Kalrez® perfluoroelastomer (FFKM/FFPM) parts resist over 1,800 different chemicals, while offering the high temperature stability of PTFE (327°C).

They’re used in highly aggressive chemical processing, semiconductor wafer fabrication, pharmaceutical, oil and gas recovery, and aerospace applications. The long-term, proven performance of Kalrez® parts can mean less frequent seal changes, repairs and inspections, increasing process and equipment uptime for greater productivity and yield.
Kalrez® parts and seals also help prevent semiconductor process contamination by reducing particulates, lowering extractables, and resisting degradation in harsh plasma. Kalrez® parts provide low outgassing in vacuum-sealing applications. FDA-compliant seals are also available for food, beverage or pharmaceutical processes.

Kalrez® Compound Number Industry Segment Elastomer Hardness Shore A Description / Application Colour Temp°C
4079 (126kB) Semiconductor FFKM 75 Thermal applications Black 316°C
1050LF (97kB) Chemical processing FFKM 82 General purpose hot water/steam, amines Black 288°C
Spectrum™ 6375 (118kB)
Chemical processing FFKM 75 Outstanding performance in the widest possible range of chemicals and temperatures Black 275°C
Spectrum™ 7075 (119kB)
Chemical processing
Highest temperature resistance, lowest compression set, temperature cycling
6221 (92kB)
Food & Pharma
FFKM 70 FDA, USP Class VI, FCN 000101, Japan Pharmacopeia, 3A
White 260°C
6230 (92kB) and 6230A
Food & Pharma FFKM 75 FDA, USP Class VI, FCN 000101, Japan Pharmacopeia, 3A Black 260°C
6236, LS205 and LS222
Food & Pharma

FDA, USP Class VI, FCN 000101, Japan Pharmacopeia, 3A black/white
2037UP (85kB)
Semiconductor FFKM 79 High purity White 220°C
6375UP (129kB)
Semiconductor FFKM 75 Wet process applications, low elemental extractables, static and dynamic applications Black 275°C
7075UP (100kB)
Semiconductor FFKM 75 Recommended compound for thermal applications Black 327°C
8002 (110kB)
Semiconductor FFKM 69 Select semiconductor plasma and gas deposition applications, low particle generation Clear 250°C
Sahara™ 8085 (136kB)
Semiconductor FFKM 80 Plasma and gas deposition, HDPCVD, PECVD, SACVD, Etch, Ash, low particle generation o-rings and bonded doors Beige 240°C
Sahara™ 8475 (94kB)
Semiconductor FFKM 60 Thermal applications White 300°C
Sahara™ 8575 (160kB)
Semiconductor FFKM 62 Etch - low weight loss in oxygen and fluorine based plasmas White 300°C
3018 (172kB)
Chemical processing / Oil exploration FFKM 91 High hardness, high modulus, extrusion resistance Black 288°C
9100 (207kB)
Semiconductor FFKM 74

High hardness, high modulus, excellent resistance Amber translucent
9100 voor Photovoltaic (97kB)
Excellent resistance to dry process chemistry, ultralow particle generation, excellent thermal stability, low compression set and outgassing properties.
Amber translucent
0040 (77kB)
Chemical processing FFKM 70 For Low Temperature Applications  Black  - 42°C/ 220°C
0090 Oil and Gas (103kB)
Oil and Gas
Outstanding RGD and broad chemical resistance meets NORSOK M-710 "0000"
Kalrez® is a registered trademark of DuPont Performance Elastomers L.L.C.
Spectrum™ is a trademark of DuPont Performance Elastomers L.L.C.
Sahara™ is a trademark of DuPont Performance Elastomers L.L.C.

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