Popular O-Ring Material Selection Comparison Guide

Fluid Compatibility Guide
A detailed list of fluids/chemicals with their compatibility ratings for use with the most common O-Ring materials.

Quick Reference Material Guide
A list of popular materials with typical recommended and non-recommended uses with typical mechanical properties.

Understanding O-Ring Material Test Data
O-Ring material performance test data interpretation


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

Marco CPD# Base Material Color Duro (Shore A) Relative Price Typical Inventory Level High Temp (F) Low Temp (F) Steam < 300 F Steam < 400 F Compression Set Chemical & Solvents Sunlight, Ozone, UV Wear Abrasion Permeation Vacuum Petroleum Oils & Hydraulics Fuels & Gas Brake Fluids
1 = Great    2 = Good    3 = Fair    4 = Poor
FFKM View FFKM Page FFKM, Kalrez®, Markez®, Chemraz®, Simriz®, Perlast®, Parfluor®, FFKM, Perfluoroelastomer Many Many O-ring Material Price 6 Varies 625 -40 1 2 2 1 1 2 2 1 1 3
High performance mateiral for ultimate chemical and temperature resistance. Kalrez®, Markez, Chemraz®, Simriz®, Perlast®, Parfluor® FFKM Perfluoroelastomer compounds available, or contact us with specific requirements.
B1000
BUNA-N (NBR) Nitrile Black 70 O-ring Material Price 1 Very High 250 -30 4 4 2 4 4 2 2 1 2 4
Datasheet Lowest cost highest inventory general purpose commodity NBR compound (available in nearly any color and durometer)
B1001
BUNA-N (NBR) Nitrile Black 90 O-ring Material Price 2 High 250 -30 4 4 2 4 4 2 2 2 2 4
Datasheet General purpose NBR, higher pressure applications
B1002
BUNA-N (NBR) Nitrile Black 70 O-ring Material Price 2 Med 250 -30 4 4 2 4 4 2 2 2 2 4
Datasheet FDA Compliant NBR per 21 CFR 177.2600 for food contact and some medical uses
B1006
BUNA-N (NBR) Nitrile Black 50 O-ring Material Price 2 Med 250 -30 4 4 3 4 4 2 2 2 2 4
Datasheet General purpose softer than standard NBR to help seal rough or warped glands and or lower closure force applications
B1083
BUNA-N (NBR) Nitrile Black 70 O-ring Material Price 2 Med 275 -65 4 4 2 4 4 2 2 1 2 4
Datasheet Higher performance NBR , Improved lower and higher temperature resistance and oil resistance at higher temperature than standard NBR.  Similar to Parker N0794-75 and M83461
B1105
BUNA-N (NBR) Nitrile Black 70 O-ring Material Price 4 Low 250 -30 4 4 3 4 4 2 2 2 2 4
Datasheet Metal detectable NBR for contamination detection sensors, FDA Compliant per 21 CFR 177.2600 for food contact and some Life Sci uses (additional colors available)
M1000
BUNA-N (NBR) Nitrile Black 70 O-ring Material Price 3 Med 275 -65 4 4 2 4 4 2 2 1 1 4
Datasheet Military Specification Mil-Spec AMS-P-25732 , formerly MS28775-### per Mil-P-25732C-(1)
M1001
BUNA-N (NBR) Nitrile Black 75 O-ring Material Price 3 High 275 -65 4 4 2 4 4 2 2 1 1 4
Datasheet Military Specification Mil-Spec AMS-P-83461 F ormerly M83461/1-### per MIL-P-83461B#3, improved low temp and hydraulic fluid resistance
R1001
HNBR Hydrogenated Nitrile Black 70 O-ring Material Price 3 Med 325 -30 2 4 2 3 2 2 2 1 1 4
Datasheet General purpose HNBR higher and lower temperature resistance and improved chemical and Freon resistace than tradtional NBR, compatible with most flex fuels
R1008
HNBR Hydrogenated Nitrile Black 90
O-ring Material Price 4
Low
350 -12 2 4 2 2 2 2 2 1 1 4
Datasheet Improved explosive decompression resistance HNBR for higher pressure applications in the Oilfield Industry, Norsok M-710 Compliant.
Marco CPD# Base Material Color Duro (Shore A) Relative Price Typical Inventory Level High Temp (F) Low Temp (F) Steam < 300 F Steam < 400 F Compression Set Chemical & Solvents Sunliight, Ozone, UV Wear Abrasion Permeation Vacuum Petroleum Oils & Hydraulics Fuels & Gas Brake Fluids
1 = Great    2 = Good    3 = Fair    4 = Poor
V1000
FKM Viton® (A) Fluorocarbon Black 75 O-ring Material Price 4 Very High 437 -15 3 4 1 2 1 2 2 1 1 4
Datasheet Lowest cost highest inventory general purpose commodity FKM (available in nearly any color and durometer)
V1002
FKM Viton® (A) Fluorocarbon Black 75 O-ring Material Price 5 High 437 -15 2 4 1 2 1 2 2 1 1 4
Datasheet Military Specification Mil-Spec AMS-R-83248 M83248/1-### per Mil-R-83248 TY-1 CL-1
V1003
FKM Viton® (A) Fluorocarbon Brown 75 O-ring Material Price 5 High 437 -15 3 4 1 2 1 2 2 1 1 4
Datasheet General purpose brown color FKM to diferentiate from standard black FKM, improved oxidation resistance
V1007
FKM Viton® (A) Fluorocarbon Black 90 O-ring Material Price 5 High 437 -15 3 4 2 2 1 2 2 1 1 4
Datasheet General purpose higher durometer FKM for higher pressure applications
V1038
FKM Viton® (GLT) Fluorocarbon Black 75 O-ring Material Price 5 Low 437 -40 2 3 1 2 1 2 2 2 1 4
Datasheet Lower temperature resistance and improved chemical resistance over standard A type FKM
V1118
FKM Viton® (F) Fluorocarbon White 70 O-ring Material Price 5 Low 437 -15 3 4 2 2 1 2 2 1 1 4
Datasheet Medical Grade USP Class VI compliant, commercial manufactured terpolymer FKM, FDA compliant per 21 CFR 177.2600, 3A Dairy USDA compliant
V1020
FKM Viton® (ETP) Fluorocarbon Black 75 O-ring Material Price 6 Med 437 -6 2 3 1 1 1 2 2 1 1 3
Datasheet Best FKM family chemical resistance , known as Viton® ETP, Viton® Extreme and Super Viton®, improved base, amines, ketones, MTBE, MEK, MIBK resistance
V1090
FKM Viton® (GLT) Fluorocarbon Black 90 O-ring Material Price 6 Low 437 -40 2 4 2 2 1 2 2 1 1 4
Datasheet High performance FKM with higher and lower temperature resistance and harder durometer explosive decompression resistance, Norsok and Nace tested for Oilfiled.
V1086
FKM Viton® (LTFE) Fluorocarbon Black 75 O-ring Material Price 5 Low 437 -54 2 4 1 2 1 2 2 1 1 4
Datasheet Lowest temperature resistant FKM with improved resistance to fuels over standard type A
Marco CPD# Base Material Color Duro (Shore A) Relative Price Typical Inventory Level High Temp (F) Low Temp (F) Steam < 300 F Steam < 400 F Compression Set Chemical & Solvents Sunliight, Ozone, UV Wear Abrasion Permeation Vacuum Petroleum Oils & Hydraulics Fuels & Gas Brake Fluids
1 = Great    2 = Good    3 = Fair    4 = Poor
L1000
Aflas® (TFE/P) Black 80 O-ring Material Price 5 Med 450 15 1 2 2 2 1 2 2 2 2 2
Datasheet General purpose Aflas ®, steam resistant, sour gas resistant, acid resistance, for chemical and oil industries  (higher performance Alfas® versions avaialble for oil drilling environmnets)
L1009
Aflas® (TFE/P) Black 90 O-ring Material Price 6 Low 475 32 1 2 2 2 1 2 2 2 2 2
Datasheet Higher performance and higher durometer Aflas®, improved explosive decompression resistance, steam resistance, sour gas resistance, acid resistance, tested to Norsok M-710 for oilfield
F1001
Fluorosilicone (FVMQ, FSIL) Blue 70 O-ring Material Price 5 High 350 -80 4 4 2 3 1 4 3 3 1 4
Datasheet Aerospace Military Specification Mil-Spec AMS-R-25988 M25988/1-### per Mil-R-25988 CL-1 GR-70, jet fuel resistance
S1000
Silicone (VMQ, SIL) Orange 70 O-ring Material Price 53 Very High 400 -75 3 4 2 4 1 4 3 4 4 4
Datasheet General purpose and FDA compliant Silicone per 21 CFR 177.2600   (available in nearly any color and durometer)
S1004
Silicone (VMQ, SIL) Orange 40 O-ring Material Price 4 Low 400 -75 3 4 3 4 1 4 3 4 4 4
Datasheet General purpose softer than standard Silicone to seal rough or warped glands and or low closure force applications
S1015
Silicone (VMQ, SIL) Orange 70 O-ring Material Price 4 Low 500 -65 3 4 2 4 1 4 3 4 4 4
Datasheet Higher temperature resistant Silicone
S1043
Silicone (VMQ, SIL) Orange 50 O-ring Material Price 4 Low 400 -103 3 4 2 4 1 4 3 4 4 4
Datasheet Lower temperature resistant Silicone
S1020
Silicone (VMQ, SIL) Clear 70 O-ring Material Price 4 Low 400 -65 3 4 2 4 1 4 3 4 4 4
Datasheet Clear-Translucent and FDA compliant Silicone per 21 CFR 177.2600
S1146
Silicone (VMQ, SIL) White 70 O-ring Material Price 4 Low 480 -75 3 4 2 4 1 4 3 4 4 4
Datasheet Medical Grade USP Class VI and FDA compliant Silicone, Platinium Cured, Commercial Manufactured
S1083
Silicone (VMQ, SIL) Clear 70 O-ring Material Price 4 Low 400 -65 3 4 2 4 1 4 3 4 4 4
Datasheet Medical Grade USP Class VI and FDA compliant Silicone, Platinium Cured, Commercial Manufactured
S1037
Silicone (VMQ, SIL) Clear 70 O-ring Material Price 5 Low 400 -65 3 4 2 4 1 4 3 4 4 4
Datasheet Medical Grade USP Class VI and FDA compliant Silicone, Platinium Cured, Clean Room Manufactured
S1081
Silicone (VMQ, SIL) Orange 65 O-ring Material Price 6 Low 350 -65 4 4 4 4 1 4 3 4 4 4
Datasheet EMI RFI Shielding Nickel Coated Graphite filled Silicone, Volume Resistivity 0.10 ohm-cm
Marco CPD# Base Material Color Duro (Shore A) Relative Price Typical Inventory Level High Temp (F) Low Temp (F) Steam < 300 F Steam < 400 F Compression Set Chemical & Solvents Sunliight, Ozone, UV Wear Abrasion Permeation Vacuum Petroleum Oils & Hydraulics Fuels & Gas Brake Fluids
1 = Great    2 = Good    3 = Fair    4 = Poor
E1000
EPDM (Peroxide Cure) Black 70 O-ring Material Price 2 Very High 300 -65 1 4 2 2 1 3 2 4 4 1
Datasheet General purpose peroxide cured EPDM FDA compliant per 21 CFR 177.2600 and NSF61 for drinking water and food contact
E1005
EPDM (Sulfur Cure) Black 70 O-ring Material Price 2 Med 265 -65 2 4 2 2 1 3 2 4 4 3
Datasheet General purpose sulfur cured EPDM with lowest cost at very high volumes
E1097
EPDM (Peroxide Cure) Black 70 O-ring Material Price 3 Low 300 -65 1 4 2 2 1 3 2 4 4 1
Datasheet Chloramine Resistant NSF61 for drinking water, food and dairy contact, peroxide cured EPDM FDA compliant per 21 CFR 177.2600, 3A USDA compliant
E1074
EPDM (Peroxide Cure) White 70 O-ring Material Price 4 Low 300 -65 1 4 2 2 1 3 2 4 4 1
Datasheet Medical Grade USP Class VI compliant EPDM, commercial manufactured, peroxide cured, FDA compliant per 21 CFR 177.2600, 3A Dairy USDA compliant
N1000
Neoprene® (CR) Black 70 O-ring Material Price 2 Med 250 -40 4 4 2 4 2 2 2 2 4 3
Datasheet General purpose Neoprene®
P1000
Polyurethane (PU, AU) Translucent 70 O-ring Material Price 5 Med 250 -65 4 4 2 3 1 1 1 3 3 4
Datasheet High performance 70 durometer Polyurethane
P1001
Polyurethane (PU, AU) Translucent 90 O-ring Material Price 5 Med 250 -65 4 4 2 3 1 1 1 3 3 4
Datasheet High performance 90 durometer Polyurethane
P1004
Polyurethane (PU, AU) Translucent 90 O-ring Material Price 3 Med 180 -30 4 4 3 4 1 2 1 4 4 4
Datasheet General purpose 90 durometer Polyurethane
P1006
Polyurethane (PU, AU) Translucent 70 O-ring Material Price 3 Med 180 -30 4 4 3 4 1 2 1 4 4 4
Datasheet General purpose 70 durometer Polyurethane
T1000
PTFE Solid (Virgin) Teflon® White N/A O-ring Material Price 6 Med 450 -250 3 4 4 1 1 3 1 1 1 1
Datasheet General purpose PTFE extreme chemical resistant ridged plastic only seals in limited applications  (consider FFKM for critical leak resistant applications)
T1002
FEP (Teflon®) Encapsulated Silicone Orange Core N/A O-ring Material Price 5 Med 400 -80 3 4 3 1 1 3 2 3 1 1
Datasheet General purpose extreme chemical resistant FEP (Teflon®) cover with encapsulated Silicone Solid core, can have leaking issues in some applications (consider FFKM for critical leak resistant applications)
T1021
PFA (Teflon®) Encapsulated Stainless Steel Spring Silver Core N/A O-ring Material Price 6 Low 500 -400 3 4 2 1 1 3 2 1 1 1
Datasheet High performance extreme chemical resistant FEP (Teflon®) cover with encapsulated Steel Spring core (cosider Spring Energized PTFE Seals for critical applications)
Marco CPD# Base Material Color Duro (Shore A) Relative Price Typical Inventory Level High Temp (F) Low Temp (F) Steam < 300 F Steam < 400 F Compression Set Chemical & Solvents Sunliight, Ozone, UV Wear Abrasion Permeation Vacuum Petroleum Oils & Hydraulics Fuels & Gas Brake Fluids
1 = Great    2 = Good    3 = Fair    4 = Poor

The temperature ranges presented above 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.


Selecting an O-Ring material for a specific application depends on many important criteria including:
Service Conditions (media to be sealed, temperature range, pressure/vacuum range, dynamic motion)
Design Attributes (component geometry, desired service life, installation considerations, tolerances)

This guide is intended for general reference use only.
The materials and compound numbers listed are the most commonly used.
There are numerous compound variations designed for specific applications.
For demanding applications, please provide all the details to our application engineers for a recommendation.


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

New Customer Hotline: 800-775-6525

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

Marco Rubber & Plastics
PO Box 1150
Seabrook, NH 03874

Contact
Home