This document provides information on various types of o-rings including materials, temperature ranges, and applications. It discusses aflas o-rings which are made of a fluororubber and can withstand temperatures up to 550 degrees F. Buna o-rings, also called nitrile o-rings, are the most widely used as they are inexpensive and resist water, oil, and some fuels but not sunlight. EPDM o-rings offer resistance to steam and mild chemicals and are used in water systems, braking systems, and various industries. O-ring kits containing common sizes are available in nitrile, fluoroelastomer, and silicone materials.

1. O-RINGS AND
INDUSTRIAL O-
RINGS ACCESSORIES
American & Metric O-RINGS in a wide
range of materials and sizes, Size
Range From: 1/32″ to 26″ I.D. O-Rings
and Industrial O-Rings Accessories:
Measuring Cone & Tape, Sizing Charts,
Lubricants, Picks. O-Ring materials
include: Nitrile, Buna-N, Viton® , FKM ,
Aflas®, Silicone, PTFE, molded PTFE o-rings, FEP encapsulated FKM,
EPDM, Neoprene, Silicone o-ring, 4 Lobe Q-Rings, E.P.R, Kalrez.
AFLAS O-RINGS
AFLAS O-RINGS DESCRIPTION
Aflas® material is an elastomeric based fluororubber, a copolymer of tetrafluoroethylene and
propylene. This elastomer offers excellent chemical resistance qualities, with serviceability in the
temperatures up to 550 degrees F depending on environment. Services where Aflas might be
applicable include inorganic acids, alkalis, high temperature steam, polar solvents, organic bases,
hydrocarbon oils, amines and amine corrosion inhibitor systems, and hydrogen sulfide bearing fluids.
O-Rings Properties:
Excellent heat resistance with continuous service temperature capability of 450°F, chemical
resistance including resistance to strong acids and bases, high electrical resistivity, excellent oil
resistance. Aflas® is a copolymer of TFE and Propolene, an elastomeric based fluororubber.
O-Rings Temperature Range:
-25 F to +450 F+
AFLAS O-Rings are Not Recommended for :
AFLAS O-Rings are highly resistant to a wide range of chemicals but are not recommended to be
used with Ketones (MEK), Auto/Aircraft Brake Fluids, Acetone, Skydrol, Ethyl Acetate, Low
Molecular Esters and Ethers.

2. Uses
norganic acids, alkalis, high temperature steam, polar solvents, organic bases, hydrocarbon oils,
amines and amine corrosion inhibitor systems, and hydrogen sulfide bearing fluids Viton® is a
registered trademark of DuPont Performance Elastomers. All rights reserved.
AFLAS® is a registered trademark of the Asahi Glass Co., Ltd.
Buna O-Rings
An O-ring is a solid-rubber seal shaped like a doughnut or torus. When compressed
between mating surfaces, O-ring blocks the passage of liquids or gases. O-rings are
available in a wide range of standard and custom sizes that are suitable for nearly all
sealing applications.
We, at AS&P focus on long-term relationships based on trust, honesty, and communication.
Whether you need specialized custom O-Ring seals or off-the-shelf standard O-Ring seals,
we have them all at great prices.
Buna O-Rings Description
Buna O-Rings also referred to as NBR O-Rings and Nitrile O-Rings are the most widely
used O-Ring materials in the world because of its low cost & good mechanical performance
along with excellent resistance to water, most basic oils, lubricants, and some fuels. Its
versatility makes it an ideal material for O-Rings, seals, gaskets, and custom molded
components for all industries and applications. Buna O-Rings are not recommended for
exposure to sunlight, UV light, ozone and general outdoor weathering or harsh chemicals,
acids, ketones, and many others.
Nitrile is unique among synthetic rubbers in that it is generally resistant to chemicals such
as oil and fuel, among other substances such as mineral and vegetable oils, diluted acids,
and alkaline substances. Buna-Nitrile is less likely to cause allergic reactions than latex or
natural rubber materials, making it popular for medical and dental applications. Nitrile also
exhibits greater strength and puncture resistance than latex and natural rubber.
EPDM O-RINGS
EPDM O-RINGS DESCRIPTION:

3. An O-ring is also known as a packing or toric joint and is a mechanical gasket shaped like a
doughnut. When compressed between connecting surfaces, O-ring blocks the entry and exit of liquids
or gases. EPDM O-rings are a family of synthetic elastomers that offer low-cost steam and chemical
resistance, particularly in areas of applications that entail the use of solvents, acids, and other mild
chemicals. At AS&P, we have a wide variety of EPDM O-rings and custom EPDM O-rings
manufactured as per your specifications. This way, we can ensure that the EPDM o-rings that you
need are always made available to you. Whether it’s for water systems, braking systems, medical,
pharmaceutical, food or dairy use, you can rely on us to deliver high-quality O-rings to you quickly.
EPDM rubber (ethylene propylene diene monomer) is an elastomer which is characterized by a wide
range of applications. EPDM exhibits satisfactory compatibility with fireproof hydraulic fluids,
ketones, hot and cold water, and alkalis, and unsatisfactory compatibility with most oils, gasoline,
kerosene, aromatic and aliphatic hydrocarbons, halogenated solvents and concentrated acids.
O-RINGS KITS
O-Ring Kits -The most common AS-568 American standard sizes are contained in this o-
ring kits. 27/ 30 / 32 different sizes, a total of 364/ 371 / 396 pcs. Kits are availble in Buna-N
(Nitrle), Fluorolastomer (FKM), and Silicone.
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