Chemical Processing and Storage
The chemical processing industry requires high performance sealing materials that offer excellent chemical resistance to various aggressive media. The diverse range of markets within this industry, including petrochemical and pharmaceutical, demand outstanding chemical sealing performance, reliability and increased service life, which in turn extends preventative maintenance cycles of mechanical seals.
Marco Rubber can provide superior chemical sealing solutions for pumps, valves, mechanical seals, pipe couplings and reactors, which meet or exceed your requirements. To meet demanding chemical sealing applications, Marco Rubber seals are molded in a range of high specification materials capable of withstanding extreme temperatures and harsh chemicals.
Markez® Perfluoroelastomers provide the highest level of thermal and chemical resistance available, making them ideal for use in the most demanding chemical sealing applications. Compare price and performance to Kalrez®. Markez® extreme chemical resistant o-rings are in stock and available to buy online or contact us to consult with an FFKM O-Ring expert.
Common Materials
- Markez® Perfluoroelastomers
- Viton® Extreme (ETP)
- Aflas®
- EPDM
- FKM
- Fluorosilicone
Common Products
- O-rings
- X-rings
- v-rings and Packings
- Custom Gaskets
- Back-up rings
- PTFE seals and O-rings
- SES spring energized seals
- Cap Seals
- Wear rings and Bushings
FFKM Compatability
Compound # | Datasheet | Color | Hardness (Shore A) | High Temp °F (°C) | Low Temp °F (°C) | Strong Acids | Hot Amines | Steam < 300 °F | Steam > 500 °F | Strong Oxidizers | Dry Heat | Comparable Compounds | Features |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | Black | 75 | 610 (321) | 5 (-15) | Kalrez® 6375, 4079, 7075 | Best value general purpose performance, higher temperature resistance, wide chemical compatibility | |||||||
| Black | 75 | 500 (260) | 5 (-15) | Kalrez® 6375, Kalrez® 6380, Kalrez® 1050LF | General purpose, good in most acids, solvents, improved hot amine and steam resistance with wide range of chemical compatibility | |||||||
| Black | 75 | 480 (249) | 5 (-15) | Kalrez® 6375, Chemraz® 505 | General purpose, good resistance to most paint solvents use in spraying applications | |||||||
| Black | 75 | 610 (321) | -5 (-21) | Kalrez® 6230, Kalrez® LS222 | FDA compliant, higher temperature resistance, wide chemical compatibility | |||||||
| Black | 75 | 635 (335) | -5 (-21) | Kalrez® 7075, Kalrez® 4079, Kalrez® 8900 | Highest temperature FFKM with best long term compression set resistance up to 335ºC, short exposures up to 350ºC, Low sticking force, semicon metallic clean, low outgassing, wide range of chemical acid, solvent resistance, FDA compliant. | |||||||
| Black | 90 | 590 (310) | 5 (-15) | Kalrez® 7090, Kalrez® 3018, Chemraz® 510 | Higher temperature resistance Norsok M710 AED explosive decompression resistance, excellent resistance to Sour gas and associated chemicals and steam | |||||||
| Black | 75 | 600 (316) | -20 (-29) | Kalrez® 7275, Kalrez® 8575, Kalrez® 9500 | Improved plasma resistance, higher purity, wider temperature range, low extractables. | |||||||
| Black | 75 | 480 (249) | -50 (-46) | Kalrez® 0040 | Improved low temperature resistance for use in oilfield and gas exploration, wide chemical resistance | |||||||
| Black | 90 | 465 (241) | -50 (-46) | Kalrez® 0040 | Lower temperature resistance, AED explosive decompression resistance, providing the best overall temp range and Chemical resistance |
FKM Type Comparison Chart
FKM Viton® Type (Marco Compound) | A (V1000) | B (V1032) | F (V1088) | GF (V1081) | GLT (V1038) | GFLT (V1033) | XLT (V1086) | ULT (V1166) | ETP (V1020) | AFLAS® (L1000) | BRFKM (L1010) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Relative Pricing | $ | $$ | $$ | $$ | $$ | $$$ | $$$$ | $$$$$ | $$$$$ | $$ | $$ |
| Availability | High | Low | Low | Medium | Medium | Medium | Medium | Medium | High | High | Medium |
| H2S % | 2 | 5 | 5 | 5 | 5 | 5 | 10 | 10 | 5 | 20 | 40 |
| High Temp Performance F° (C°) | 437 (225) | 437 (225) | 437 (225) | 437 (225) | 437 (225) | 437 (225) | 437 (225) | 437 (225) | 437 (225) | 450 (232) | 450 (232) |
| Low Temp Performance F° (C°) | -15 (-26) | -11 (-24) | 1 (-17) | 3 (-16) | -40 (-40) | -29 (-34) | -54 (-48) | -65 (-54) | -6 (-21) | 25 (-4) | 1 (-17) |
| TR-10 Low Temp Performance F° (C°) | 1 (-17) | 7 (-14) | 20 (-7) | 21 (-6) | -22 (-30) | -11 (-24) | -40 (-40) | -49 (-45) | 12 (-11) | 37 (3) | 20 (-7) |
| Strong Base, High PH, Caustic, Amines |  | | | | | | | |  | | |
| Low Molecular Weight Carbonyls 100% Concentration (MTBB, MBK, MIBK, ETC) | | | | | | | | | | | |
| Engine Lubrication Oil, SG and SH | | | |  | | | | | | | |
| Aqueous Fluids, Steam, Mineral Acids (H2SO4, HN02) | | | | | | | | | | | |
| Aromatic Hydrocarbons | | | | | | | | | | | |
| Automotive Fuels Oxygenated With MEOH, ETOH, MTBE, ETC. | | | | | | | | | | | |
| Engine Lubricating Oil, SE and SF | | | | | | | | | | | |
| Resistance to Compression Set | | | | | | | | | | | |
| Automotive and Most Aviation Fuels | | | | | | | | | | | |
Rating Scale:
= Excellent = Good = Not Recommended The information on this page 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.
The temperature ranges presented on this page are approximations for dry air service only and should not be used to determine design specifications or end-use temperature limits. Actual temperature range of a compound in an end-use application is highly dependent on part type, hardware configuration, applied forces, chemical media, pressure and thermal cycling effects, and other factors. The most practical way of determining an end-use temperature range is testing in the actual application conditions. Consult a Marco Engineer for more details.
Product and Application Engineering Support
Need a custom product design or custom material formulation to improve performance in a specific application to separate yourself from the competition? Let us prove how responsive our product and application engineers are and that our custom products and custom materials often cost less than our competitors standards.
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Marco Rubber & Plastics is an industry leader in custom sealing solutions that go beyond the limits of catalog commodities. Since 1980, our solutions have delivered reliable, long-lasting success for customers worldwide. We offer the largest inventory of specialty and standard sealing solutions backed by best-in-class technology, service and support.
