O-Ring Material Compound Compatibility Selection Guide

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Compare o-ring material properties to find and buy the best o-rings compatible with your application environment. Whether you need high temperature o-rings, low temperature o-rings, high pressure o-rings, or o-rings with excellent chemical resistance, allorings.com accesses the world’s largest inventory network of high performance o-rings.

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Perfluoroelastomers (FFKM, Kalrez®, Markez®, Chemraz®) deliver ultimate chemcial and high temperature resistance, but with a very high cost relative to traditional rubber elastomer sealing materials. Dozens of specialized formulations have been developed to maximize performance in specific application situations like improved low temperature, acid, amines, plasma, steam, food and medical grade, high pressure and explosive decompression resistance.

Fluorocarbon compounds are widely used in chemical, aerospace, and industrial applications. These materials offer excellent chemcial and high temperature resistance. Not recommended for use with steam, amines, or polar solvents. Specialty FKM types and formulations are available for improved low temperature and chemical resistance as well as colors, durometer hardness, food and medical grade, high pressure and explosive decompression resistance.

Aflas® materials exhibit excellent chemical, heat and steam resistance. They have similar properties to FKM, but with increased resistance to bases, amines, sour gasses, steam, and radiation. Aflas® materials can have limited compression set resistance and should not be used with aromatic fuels, ketones, or chlorinated hydrocarbons.

Nitrile rubber materials are the most commonly used general purpose o-ring material because of relative low cost, good mechanical properties, and performance with many basic oils, fuels, and lubricants. Not recommended for use with UV, ozone, steam, harsh fuels or chemicals. Nitrile materials can be formulated to enhance specific physical and chemical resistances like color, durometer hardness, internal lubrication, steam, ozone, high and low temperature performance.

Hydrogenated Nitrile was specifically developed to offer increased temperature and fuel resistance compared to traditional Nitrile (NBR) materials. HNBR compounds also have excellent abrasion, wear, and compression set resistance. Poor resistance to aromatic or chlorinated hydrocarbons, fuels and solvents.

Silicone materials have excellent thermal stability in extreme low and high temperature environments. Silicones have good broad spectrum chemical resistance and are physiologically neutral making them ideal for many food, pharma, and medical applications. Not recommended for dynamic service or for contact with many fuels, mineral oils, or concentrated acids. Silicone can be formulated in a variety colors, durometer hardnesses and variations designed for use in a wide range of demanding specialty applications like medical and EMI shielding.

Fluorosilicone materials are mechanically similar to Silicone (VMQ) but offer increased resistance to fuels and mineral oil at the cost of decreased high temperature resistance. Fluorosilicones have excellent low temperature resistance and are often used in demanding aerospace and automotive applications such as fuel and exhaust systems. Not recommended for dynamic service or for use with concentrated aromatic solvents, amines, esters, and ketones.

Ethylene-Propylene rubber materials are characterized by excellent chemical, steam and thermal resistance for a relative low cost. Often used in food, water, beverage and agricultural systems, hydraulic, braking, steam applications. Not recomended for use with oils and fuels. EP can be formulated in a variety of ways for use in a wide range of demanding specialty applications.

Polyurethane is a type of thermoplastic elastomer that can be formulated in a variety of ways, each yielding very different mechanical properties and resistances. Generally Polyurethanes have excellent wear and abrasion resistance, good weathering resistance, and moderate resistance to oils and lubricants depending on formulation. Not recommended for use in demanding chemical or thermal environments.

	Popular Allorings Compounds
Order Online Click Material to Start		Service Temperature Range			Resistances
Material Family	Relative Price	Low Temp. Range, °F	Abbv.	High Temp. Range, °F	Compr. Set	Oils	Steam	Weather/ UV	Fuels	Acids/ Solvents	Bases	Abrasion Wear	Permeation
FFKM Perfluoro (Markez®, Kalrez®, etc)
FKM (Viton®)
Aflas®
Buna-N (NBR Nitrile)
HNBR
Silicone
Fluorosilicone
EPDM
Polyurethane
					Excellent Moderate Poor Specialty Compounds Only

Compound	Brand	Low Temp ° F	High Temp ° F	Durometer	Color	Special Features
Z1028 Quote or Order Online O-RING X-RING SQUARE RING OTHER View Datasheet	Markez®	5	610	75	Black	Best value higher temperature resistance, wide spectrum chemical compatibility, excellent performance and mechanical properties. Compare to Kalrez® 6375 and Kalrez® 4079
Z1352 Quote or Order Online O-RING X-RING SQUARE RING OTHER View Datasheet	Markez®	5	500	75	Black	Improved Acid, Amine and Steam resistance, compare to Kalrez® 6380 and Kalrez® 1050LF
Z1416 Quote or Order Online O-RING X-RING SQUARE RING OTHER View Datasheet	Markez®	-5	610	75	Black	FDA FDA compliant, higher temperature resistance, wide chemical compatibility
Z1400 Quote or Order Online O-RING X-RING SQUARE RING OTHER View Datasheet	Markez®	-5	635	75	Black	Highest temperature FFKM with best long term compression set resistance up to 335ºC, short exposures up to 350ºC, Low outgassing,high purity Wide range of chemical resistance, acid, solvent resistance
Z1318 Quote or Order Online O-RING X-RING SQUARE RING OTHER View Datasheet	Markez®	5	500	75	White	Medical Grade with wide spectrum chemical compatibiliy, USP Class VI, FDA, USDA 3A, Compare to Kalrez® 6221, LS205
Z1321 Quote or Order Online O-RING X-RING SQUARE RING OTHER	Markez®	-50	480	75	Black	Improved lower temperature resistance and wider operational temperature range with wide spectrum chemical compatibility, AED explosive decompression resistance, compare to Kalrez® 0040
Z1322 Quote or Order Online O-RING X-RING SQUARE RING OTHER	Markez®	-50	465	90	Black	Improved lower temperature resistance and harder for higher pressure perfomance with wide spectrum chemical resistance, AED explosive decompression resistance, compare to Kalrez® 0040
Z1412 Quote or Order Online O-RING X-RING SQUARE RING OTHER	Markez®	5	590	90	Black	General purpose, steam, acid, amines, solvent resistance with wide range of chemical compatibility compare to Kalrez® 6375, 6380, 1050LF
C505 Quote or Order Online O-RING X-RING SQUARE RING OTHER View Datasheet	Chemraz®	-20	450	75	Black	General purpose, not for use with steam or strong acids, compare to Markez® Z1028 and Z2004
K6375 Quote or Order Online O-RING X-RING SQUARE RING OTHER View Datasheet	Kalrez®	-5	525	75	Black	Wide spectrum use, compare to Markez® Z1028, Z1352, Z2004, Z2001
K4079 Quote or Order Online O-RING X-RING SQUARE RING OTHER View Datasheet	Kalrez®	20	600	75	Black	Higher temperature dry heat resistance not for use with steam and high temp wet environments, compare to Markez® Z2000, Z1028
K7075 Quote or Order Online O-RING X-RING SQUARE RING OTHER View Datasheet	Kalrez®	20	620	75	Black	Improved higher temperature and compression set resistance, compare to Markez® Z2000, Z2001, Z1028
Quote Quote O-RING X-RING SQUARE RING OTHER	Need a compound not shown here or not sure what is best for your application? Click the QUOTE button to describe your situation and we will respond quickly.

Compound	Relative Price	Low Temp ° F	High Temp ° F	Durometer	Color	Special Features
V1000 Quote or Order Online O-RING X-RING SQUARE RING OTHER View Datasheet		-15	437	75	Black	General purpose, commodity grade compound.
V1003 Quote or Order Online O-RING X-RING SQUARE RING OTHER View Datasheet		-15	437	75	Brown	General purpose, commodity grade compound.
V1007 Quote or Order Online O-RING X-RING SQUARE RING OTHER View Datasheet		-15	437	90	Black	Higher hardness for use in higher pressure applications.
V1020 Quote or Order Online O-RING X-RING SQUARE RING OTHER View Datasheet		-6	437	75	Black	ETP type compound with greatly improved chemical resistance for use in harsh environments.
V1038 Quote or Order Online O-RING X-RING SQUARE RING OTHER View Datasheet		-40	437	75	Black	GLT type compound with improved low temperature resistance.
V1090 Quote or Order Online O-RING X-RING SQUARE RING OTHER View Datasheet		-40	437	90	Black	NORSOK NACE GLT type compound with improved low temperature resistance, higher hardness, and Explosive Decompression (ED) resistance. Excellent for oilfiled and drilling applications.
Quote Quote O-RING X-RING SQUARE RING OTHER	Need a compound not shown here or not sure what is best for your application? Click the QUOTE button to describe your situation and we will respond quickly.

Compound	Relative Price	Relative Availability	Low Temp ° F	High Temp ° F	Durometer	Color	Special Features
L1000 Quote or Order Online O-RING X-RING SQUARE RING OTHER View Datasheet			15	450	80	Black	General purpose, commodity grade compound.
Quote Quote O-RING X-RING SQUARE RING OTHER	Need a compound not shown here or not sure what is best for your application? Click the QUOTE button to describe your situation and we will respond quickly.

Compound	Relative Price	Low Temp ° F	High Temp ° F	Durometer	Color	Special Features
B1000 Quote or Order Online O-RING X-RING SQUARE RING OTHER View Datasheet		-30	250	70	Black	General purpose, commodity grade compound.
B1001 Quote or Order Online O-RING X-RING SQUARE RING OTHER View Datasheet		-30	250	90	Black	Higher hardness for use in higher pressure applications.
B1002 Quote or Order Online O-RING X-RING SQUARE RING OTHER View Datasheet		-30	250	70	Black	FDA Food contact grade compound. FDA compliant.
B1006 Quote or Order Online O-RING X-RING SQUARE RING OTHER		-30	250	50	Black	Softer hardness to seal rough or warped glands and or low closure force applications.
B1125 Quote or Order Online O-RING X-RING SQUARE RING OTHER		-65	250	70	Black	Improved lower temperature resistance
Quote Quote O-RING X-RING SQUARE RING OTHER	Need a compound not shown here or not sure what is best for your application? Click the QUOTE button to describe your situation and we will respond quickly.

Compound	Relative Price	Low Temp ° F	High Temp ° F	Durometer	Color	Special Features
R1000 Quote or Order Online O-RING X-RING SQUARE RING OTHER View Datasheet		-30	325	70	Green	General purpose, commodity grade compound.
R1001 Quote or Order Online O-RING X-RING SQUARE RING OTHER View Datasheet		-30	325	70	Black	General purpose, commodity grade compound.
Quote Quote O-RING X-RING SQUARE RING OTHER	Need a compound not shown here or not sure what is best for your application? Click the QUOTE button to describe your situation and we will respond quickly.

Compound	Relative Price	Low Temp ° F	High Temp ° F	Durometer	Color	Cure System	Special Features
S1000 Quote or Order Online O-RING X-RING SQUARE RING OTHER View Datasheet		-75	400	70	Orange	Peroxide	FDA Food and beverage grade compound. FDA compliant.
S1005 Quote or Order Online O-RING X-RING SQUARE RING OTHER		-75	400	50	Orange	Peroxide	Softer hardness to seal rough or warped glands and or low closure force applications.
S1015 Quote or Order Online O-RING X-RING SQUARE RING OTHER		-65	500	70	Orange	Peroxide	Improved high temperature resistance compound.
S1037 Quote or Order Online O-RING X-RING SQUARE RING OTHER View Datasheet		-65	400	70	Clear-Translucent	Platinum	FDA USP Ultra clean compound for use in medical and pharmaceutical applications. Manufactured and packaged in a clean room.
S1043 Quote or Order Online O-RING X-RING SQUARE RING OTHER		-100	400	50	Orange	Peroxide	Improved low temperature resistance compound.
S1083 Quote or Order Online O-RING X-RING SQUARE RING OTHER		-65	400	70	Clear-Translucent	Platinum	FDA USP Medical and pharmaceutical grade compound. NOT manufactured or packaged in a clean room. For clean room MFG, see S1037.
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Compound	Relative Price	Relative Availability	Low Temp ° F	High Temp ° F	Durometer	Color	Special Features
F1001 Quote or Order Online O-RING X-RING SQUARE RING OTHER View Datasheet			-80	350	70	Blue	Compatibile with most jet and auto fuels. Formulated to meet Military and Aerospace specifications.
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Compound	Relative Price	Low Temp ° F	High Temp ° F	Durometer	Color	Cure System	Special Features
E1000 Quote or Order Online O-RING X-RING SQUARE RING OTHER View Datasheet		-65	300	70	Black	Peroxide	FDA NSF61 Food, beverage, and drinking water grade compound. FDA and NSF-61 compliant.
E1055 Quote or Order Online O-RING X-RING SQUARE RING OTHER View Datasheet		-65	300	70	Black	Peroxide	General Purpose, commodity grade compound.
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Compound	Relative Price	Low Temp ° F	High Temp ° F	Durometer	Color	Base Polymer	Material Type/Cure	Special Features
P1000 Quote or Order Online O-RING X-RING SQUARE RING OTHER View Datasheet		-65	250	70	Yellow-Translucent	Polyester	Cast, TODI Performance Cure	Greatly increased mechanical properties and wear resistance.
P1001 Quote or Order Online O-RING X-RING SQUARE RING OTHER View Datasheet		-65	250	90	Yellow-Translucent	Polyester	Cast, TODI Performance Cure	Higher hardness and extrusion resistance for use in higher pressure applications. Greatly increased mechanical properties and wear resistance.
P1004 Quote or Order Online O-RING X-RING SQUARE RING OTHER View Datasheet		-30	180	90	Yellow-Translucent	Polyether	Millable Gum	Higher hardness, general purpose compound.
P1006 Quote or Order Online O-RING X-RING SQUARE RING OTHER View Datasheet		-30	180	70	Yellow-Translucent	Polyether	Millable Gum	General purpose compound. Not for use in higher pressure applications.
Quote Quote O-RING X-RING SQUARE RING OTHER	Need a compound not shown here or not sure what is best for your application? Click the QUOTE button to describe your situation and we will respond quickly.

Compare O-Ring Materials

Select O-Ring Compounds and Order Online From the World’s Largest Inventory Network