Markez® vs Chemraz® vs Kalrez® O-Ring FFKM Comparison Perfluoroelastomer

Markez® high performance perfluoroelastomers (FFKM) offer unmatched value for demanding sealing applications.  Produced from nearly identical ingredients as higher priced brands, Markez® compounds provide similar broad chemical and temperature resistance up to 625° F for significantly lower cost than alternative FFKM brands.  Our proprietary processing techniques allow us to produce seals under an inch in size more efficiently.   Introduced exclusively to the existing customers over 5 years ago we now have the experience and capacity to offer Markez® to the world.

Markez® compound number Z1028 is our most popular general purpose FFKM compound due to its relative low cost and broad range of chemical and temperature resistance.  Used as a cost effective alternative to Kalrez® 6375, 4079 and 7075 in countless applications across various industries like Petro-Chem, Paint and Ink applications where resistance to harsh solvents is required.  We welcome the opportunity to assist you in selecting the compound that provides the best value for your application.  Our engineers look forward to presenting the test data examples of why so many people are choosing Markez®.

The Marco Markez® FFKM product line manager has over 20 years of experience including production and application engineering supporting worldwide brands to determine the best value product to perform in demanding applications.  Markez® compounds have been developed to deliver targeted performance and value for many specific applications.  Please contact us to assist in selecting the best material for the job.

markez, ffkm o-rings kalrez chemraz comparison kalrez alternative

Markez® Popular Compound Comparison Table

Don't see what you need?  Please contact an FFKM application engineer for assistance in selecting the compound that provides the best combination of performance and price for your specific application.

Compound Number
Brand
Color
Durometer (Shore A)
Relative Price
Typical Inventory Level
Typical MFG Time
Custom Size
O-Ring Tools
High Temp (° F)
Low Temp (° F)
Strong Acids
Hot Amines
Steam < 300 °F
Steam > 550 °F
Explosive Decompression
USP Class VI Medical Grade
FDA Compliant
Improved Compression Set Resistance
Plasma Resistance
Semicon
Oil and Gas
Chemical Processing
Life Sciences
Paint Spray Solvents
Aerospace
Alternative Fuels
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Z1028 Markez® Black 75 O-Ring Prices O-Ring Prices 2-4 Weeks Free 610 (320ºC) 5 (-15ºC) O-Ring Prices O-Ring Prices O-Ring Prices O-Ring Prices O-Ring Prices O-Ring Prices O-Ring Prices
Best value general purpose performance, higher temperature resistance, wide chemical compatibility, compare to Kalrez® 6375 and Kalrez® 4079
Z1026 Markez® Black 75 O-Ring Prices O-Ring Prices 3-4 Weeks Free 480 (250ºC) 5 (-15ºC) O-Ring Prices O-Ring Prices O-Ring Prices
General purpose, good resistance to most paint solvents use in spraying applications, compare to Kalrez® 6375
Z1404 Markez® Black 75 O-Ring Prices O-Ring Prices 2-4 Weeks O-Ring Prices 500 (260ºC) -5 (-20ºC) O-Ring Prices O-Ring Prices O-Ring Prices O-Ring Prices O-Ring Prices
General purpose, good in most acids, solvents and a wide range of chemicals, steam resistance, compare to Kalrez® 6375
Z1210 Markez® Black 80 O-Ring Prices O-Ring Prices 6-8 Weeks O-Ring Prices 525 (275ºC) 20 (-5ºC) O-Ring Prices O-Ring Prices O-Ring Prices O-Ring Prices O-Ring Prices O-Ring Prices O-Ring Prices
General purpose, improved acid resistance, solvents and a wide range of chemicals, steam resistance, compare to Kalrez® 6375
SZ485 Simriz® Black 75 O-Ring Prices O-Ring Prices 6-8 Weeks O-Ring Prices 450 (230ºC) 20 (-5ºC) O-Ring Prices
General purpose, not for use with steam or strong acids, compare to Markez® Z1028, Z1026 and Z1026
Z1352 Markez® Black 75 O-Ring Prices O-Ring Prices 3-4 Weeks Free 500 (260ºC) 5 (-15ºC) O-Ring Prices O-Ring Prices O-Ring Prices O-Ring Prices O-Ring Prices
Improved hot amine resistance, compare to Kalrez® 6380 and Kalrez® 1050LF
Z1401 Markez® Black 80 O-Ring Prices O-Ring Prices 4-5 Weeks Free 620 (325ºC) -20 (-30ºC) O-Ring Prices O-Ring Prices
Wider temperature resistance range, general purpose high temp material, compare to Chemraz® 615 and Kalrez® 4079
Z1029 Markez® White 75 O-Ring Prices O-Ring Prices 2-4 Weeks Free 575 (300ºC) 5 (-15ºC) O-Ring Prices O-Ring Prices O-Ring Prices
General purpose white, good resistance to oxidation and high temperature exposure, compare to Kalrez® 8575 (300ºC), Chemraz® 513 and Kalrez® 2037
C505 Chemraz® Black 75 O-Ring Prices O-Ring Prices 4-6 Weeks O-Ring Prices 450 (230ºC) -20 (-30ºC) O-Ring Prices O-Ring Prices O-Ring Prices O-Ring Prices
General purpose, not for use with steam or strong acids, compare to Markez® Z1028, Z1026 and Z1026
C605 Chemraz® Black 80 O-Ring Prices O-Ring Prices 4-6 Weeks O-Ring Prices 500 (260ºC) -5 (-20ºC) O-Ring Prices O-Ring Prices O-Ring Prices O-Ring Prices O-Ring Prices O-Ring Prices O-Ring Prices
General purpose, compare to Markez® Z1028
Z1319 Markez® Black 75 O-Ring Prices O-Ring Prices 3-4 Weeks Free 620 (325ºC) 5 (-15ºC) O-Ring Prices O-Ring Prices O-Ring Prices O-Ring Prices O-Ring Prices O-Ring Prices O-Ring Prices O-Ring Prices
Higher temperature resistance, excellent steam resistance, low compression set, low permeability and very low outgassing. Compare to Kalrez® 4079 and 7075
Z1321 Markez® Black 75 O-Ring Prices O-Ring Prices 3-4 Weeks Free 480 (250ºC) -50 (-45ºC) O-Ring Prices O-Ring Prices O-Ring Prices O-Ring Prices O-Ring Prices O-Ring Prices O-Ring Prices
Improved low temperature resistance for use in oilfield and gas exploration, wide chemical resistance compare to Kalrez® 0040
K6375 Kalrez® Black 75 O-Ring Prices O-Ring Prices 6-8 Weeks O-Ring Prices 525 (275ºC) -5 (-20ºC) O-Ring Prices O-Ring Prices O-Ring Prices O-Ring Prices
General purpose, compare to Markez® Z1028
C615 Chemraz® Black 80 O-Ring Prices O-Ring Prices 4-6 Weeks O-Ring Prices 620 (325ºC) 0 (-18ºC) O-Ring Prices O-Ring Prices O-Ring Prices O-Ring Prices
Higher temperature resistance general purpose,not for use with steam, compare to Markez® Z1028, Z1401, Z1319 and Z1213
K7075 Kalrez® Black 75 O-Ring Prices O-Ring Prices 6-8 Weeks O-Ring Prices 620 (325ºC) 20 (-5ºC) O-Ring Prices O-Ring Prices O-Ring Prices O-Ring Prices O-Ring Prices O-Ring Prices
Higher temperature resistance general purpose, compare to Markez® Z1028, Z1401, Z1319 and Z1214
K4079 Kalrez® Black 75 O-Ring Prices O-Ring Prices 6-8 Weeks O-Ring Prices 600 (315ºC) 20 (-5ºC) O-Ring Prices O-Ring Prices O-Ring Prices O-Ring Prices
Higher temperature resistance, not for use with steam, compare to Markez® Z1028, Z1401, Z1319 and Z1213
Z1409 Markez® Black 75 O-Ring Prices O-Ring Prices 4-5 Weeks Free 450 (230ºC) 5 (-15ºC) O-Ring Prices O-Ring Prices O-Ring Prices
FDA compliant for food and life science application, good in steam, acids and wide chemical compatibility. compare to Kalrez® 6230
Z1204 Markez® Black 75 O-Ring Prices O-Ring Prices 6-8 Weeks O-Ring Prices 450 (230ºC) 20 (-5ºC) O-Ring Prices O-Ring Prices O-Ring Prices O-Ring Prices
USP Class IV approved and FDA compliant black, good for general purpose food and Medical applications. compare to Kalrez® 6230
Z1305 Markez® White 80 O-Ring Prices O-Ring Prices 3-4 Weeks Free 590 (310ºC) 5 (-15ºC) O-Ring Prices O-Ring Prices O-Ring Prices
USP Class VI, FDA & 3-A compliant, high temperature white material providing the best all around compatibility, compare to Kalrez® 6221 and Chemraz® 625
Z1203 Markez® Black 90 O-Ring Prices O-Ring Prices 6-8 Weeks O-Ring Prices 465 (240ºC) 20 (-5ºC) O-Ring Prices O-Ring Prices O-Ring Prices O-Ring Prices
Higher durometer general purpose, provides the lowest cost for larger size seals used in oilfield and gas exploration, compare to Kalrez® 3018 and Chemraz® 510
Z1317 Markez® Black 90 O-Ring Prices O-Ring Prices 3-4 Weeks Free 500 (260ºC) 5 (-15ºC) O-Ring Prices O-Ring Prices O-Ring Prices O-Ring Prices O-Ring Prices
Higher performance AED explosive decompression resistance, tested to Norsok & Nace TM0297 standard, resistance to methanol, sour gas and steam, compare to Kalrez® 0090
Z1412 Markez® Black 90 O-Ring Prices O-Ring Prices 3-4 Weeks Free 590 (310ºC) 5 (-15ºC) O-Ring Prices O-Ring Prices O-Ring Prices O-Ring Prices O-Ring Prices O-Ring Prices
Higher temperature resistance Norsok M710 AED explosive decompression resistance, excellent resistance to Sour gas and associated chemicals and steam, compare to Kalrez® 7090
Z1322 Markez® Black 90 O-Ring Prices O-Ring Prices 3-4 Weeks Free 465 (240ºC) -50 (-45ºC) O-Ring Prices O-Ring Prices O-Ring Prices Red Square Mark Icon O-Ring Prices O-Ring Prices
Lower temperature resistance, AED explosive decompression resistance, providing the best overall temp range and Chemical resistance, compare to Kalrez® 0040
C526 Chemraz® Black 95 o-ring price o-ring price 4-5 Weeks o-ring price 480 (250ºC) -5 (-20ºC) o-ring price o-ring price o-ring price
Explosive decompression, compare to Markez® Z1322
Z1206 Markez® White 75 o-ring price o-ring price 6-8 Weeks o-ring price 450 (230ºC) 20 (-5ºC) o-ring price o-ring pric o-ring price o-ring price o-ring price
General purpose semiconductor manufacturing applications, provides better compliance, compare to Chemraz® 513 and Kalrez® 2037
Z1216 Markez® White 75 O-Ring Prices O-Ring Prices 6-8 Weeks O-Ring Prices 620 (325ºC) 20 (-5ºC) O-Ring Prices O-Ring Prices O-Ring Prices
Improved plasma resistance higher purity higher temperature resistance, very low compression set over time. compare to Kalrez® 9100, 9500 and Chemraz® DXZ
Z1403 Markez® White 75 request a quote O-rings quote price 3-4 Weeks Free 600 (315ºC) -20 (-30ºC) O-Ring Prices O-Ring Prices O-Ring Prices
Improved plasma resistance, higher purity, wider temperature range, low extractables, compare to Kalrez® 8575
Z1307 Markez® Clear Amber 75 O-Ring Prices O-Ring Prices 4-6 Weeks Free 525 (275ºC) 5 (-15ºC) O-Ring Prices O-Ring Prices O-Ring Prices
Higher purity amber tinted clear, semiconductor and laser grade material, excellent plasma resistance, compare to Kalrez® 9100
Z1411 Markez® Clear Amber 62 O-Ring Prices O-Ring Prices 4-6 Weeks O-Ring Prices 535 (280ºC) 5 (-15ºC) O-Ring Prices O-Ring Prices O-Ring Prices
Higher purity amber tinted clear, same as Markez® Z1407 but lower durometer for lower compression force for delicate applications, compare to Kalrez® 8002
K8575 Kalrez® White 62 O-Ring Prices O-Ring Prices 6-8 Weeks O-Ring Prices 575 (300ºC) 20 (-5ºC) O-Ring Prices O-Ring Prices
High temperature semiconductor processing, compare to Markez® Z1216, Z1403
K9100 Kalrez® White 74 O-Ring Prices O-Ring Prices 6-8 Weeks O-Ring Prices 575 (300ºC) 20 (-5ºC) O-Ring Prices O-Ring Prices O-Ring Prices
Higher purity translucent white, compare to Markez® Z1216, Z1307

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The information above is to the best of our knowledge accurate and reliable. However, Marco Rubber makes no warranty, expressed or implied, that parts manufactured from this material will perform satisfactorily in the customer’s application. It’s the customer’s responsibility to evaluate parts prior to use.

Don't see what you need?  Please contact an FFKM application engineer for assistance in selecting the compound that provides the best combination of performance and price for your specific application.

FFKM Dupont® Kalrez®, Markez®, Chemraz®, Perlast®, Isolast®, Parofluor®, Perfluorelastomer
Common Names:  Perfluoroelastomers, FFKM
Trade Names: Chemraz®, Kalrez®, Markez®, Isolast®, Parofluor® , Perlast®.

General Description: Perfluoroelastomer (FFKM) is a highly fluorinated elastomeric family of compounds that provide the most resistance to chemicals and high temperature than any other elastomer in the market.   FFKMs are considered the elastomeric equivalence to PTFE (Teflon) due to its excellent chemical and temperature resistance. Features: Limitations: Temperature resistance:

New Customer Hotline: 800-775-6525

Existing Customer Specialist: 800-775-6525 or repeat customers

Marco Rubber & Plastics
PO Box 1150
Seabrook, NH 03874

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